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Talc

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1592:, researchers reported the results of a survey of 61,576 postmenopausal women, more than half of whom had used talc powder perineally. The researchers compared the subjects’ reports of their own talc use with their reports of having had ovarian cancer diagnosed by their doctors, and found, regardless of subjects’ age and tubal ligation status, “Ever use of perineal powder ... was not associated with risk of ovarian cancer compared with never use,” nor was any greater individual cancer risk associated with longer use of talc powder. On this basis, the article concluded, “perineal powder use does not appear to influence ovarian cancer risk.” The 997: 1009: 4406: 4150: 985: 1585:
associated with talc-dusted diaphragms and condom use is more convincing evidence for a lack of a carcinogenic effect, especially given the lack of an established correlation between perineal dusting frequency and ovarian tissue talc concentrations and the lack of a consistent dose-response relationship with ovarian cancer risk." Instead, the authors credited powdered talc with "a high degree of safety.”
1189: 1676:; although not in the serpentine family, talc is also a sheet silicate, with two sheets connected by magnesium cations. The frequent co-location of talc deposits with asbestos may result in contamination of mined talc with white asbestos, which poses serious health risks when dispersed into the air and inhaled. Stringent quality control since 1976, including separating 72: 1025: 579: 1197: 1697:
a racial justice audit as it had been marketed to African American and overweight women. On August 11, 2022, the company announced it would stop making talc-based powder by 2023 and replace it with cornstarch-based powders. The company said the talc-based powder is safe to use and does not contain asbestos.
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In 2020 J&J stopped sales of its talcum-based baby powder, which it had been selling for 130 years. J&J created a subsidiary responsible for the claims in an effort to resolve the lawsuits in bankruptcy court. In 2023 J&J proposed a nearly $ 9bn settlement with 50,000 claimants saying the
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knew for decades that there was asbestos in its baby powder, and in 2020 the company stopped selling its baby powder in the US and Canada. There were calls for Johnson & Johnson's largest shareholders to force the company to end global sales of baby powder, and hire an independent firm to conduct
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China is the key world talc and steatite-producing country with an output of about 2.2M tonnes(2016), which accounts for 30% of total global output. The other major producers are Brazil (12%), India (11%), the U.S. (9%), France (6%), Finland (4%), Italy, Russia, Canada, and Austria (2%, each).
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judge Maren Nelson dismissed the verdict. The judge stated that Echeverria proved there is "an ongoing debate in the scientific and medical community about whether talc more probably than not causes ovarian cancer and thus (gives) rise to a duty to warn", but not enough to sustain the jury's
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Because the hexagons in the T and O sheets are slightly different in size, the sheets are slightly distorted when they bond into a TOT layer. This breaks the hexagonal symmetry and reduces it to monoclinic or triclinic symmetry. However, the original hexahedral symmetry is discernible in the
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review of ovarian cancer and talc use studies pointed out that, although many of them examined the duration, frequency, and accumulation of hygienic talc use, few found a positive association among these factors and some found a negative one: “It may be argued that the overall null findings
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In August 2017, a Los Angeles jury awarded $ 417 million to a Californian woman, Eva Echeverria, who developed ovarian cancer as a "proximate result of the unreasonably dangerous and defective nature of talcum powder", her lawsuit against Johnson & Johnson stated. On 20 October 2017,
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recommends that parents avoid using baby powder because it poses a risk of respiratory problems, including breathing trouble and serious lung damage if inhaled. The small size of the particles makes it difficult to keep them out of the air while applying the powder.
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The tetrahedral sheets consist of silica tetrahedra, which are silicon ions surrounded by four oxygen ions. The tetrahedra each share three of their four oxygen ions with neighboring tetrahedra to produce a hexagonal sheet. The remaining oxygen ion (the
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ore. Asbestos is a general term for different types of fibrous silicate minerals, desirable in construction for their heat resistant properties. There are six varieties of asbestos; the most common variety in manufacturing,
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claims were "specious" but it wanted to move on from the issue, but judges blocked the plans, ruling that the subsidiary was not in financial distress and could not use the bankruptcy system to resolve the lawsuits.
996: 1224:, used for stoves, sinks, electrical switchboards, etc. It is often used for surfaces of laboratory table tops and electrical switchboards because of its resistance to heat, electricity, and acids. 1709:
classified talcum powder as a possible human carcinogen if used in the female genital area. Despite this, no federal agency in the US acted to remove talcum powder from the market or add warnings.
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In contrast, however, research published in 1995 and 2000 concluded that, although it was plausible that talc could cause ovarian cancer, no conclusive evidence had been shown. Further, a 2008
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flux in high-temperature glazes (to control melting temperature). It is also employed as a matting agent in earthenware glazes and can be used to produce magnesia mattes at high temperatures.
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awarded a $ 4.7bn claim ($ 4.14bn in punitive damages and $ 550m in compensatory damages) against J&J to 22 claimant women, concluding that the company had suppressed evidence of
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talc from that destined for industrial use, has largely eliminated this issue, but it remains a potential hazard requiring mitigation in the mining and processing of talc. A 2010 US
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Houghton, Serena C.; Reeves, Katherine W.; Hankinson, Susan E.; Crawford, Lori; Lane, Dorothy; Wactawski-Wende, Jean; Thomson, Cynthia A.; Ockene, Judith K. (11 September 2014).
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forced to inhale talc for 6 hours a day, five days a week over at least 113 weeks. A 1971 paper found particles of talc embedded in 75% of the ovarian tumors studied. In 2018,
955:. Apical oxygens take the place of some of the hydroxyl ions that would be present in a brucite sheet, bonding the tetrahedral sheets tightly to the trioctahedral sheet. 2404: 1627:
have set occupational exposure limits to respirable talc dusts at 2 mg/m over an eight-hour workday. At levels of 1000 mg/m, inhalation of talc is considered
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Due to its low shear strength, talc is one of the oldest known solid lubricants. Also, limited use is made of talc as a friction-reducing additive in lubricating oils.
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Notable economic talc occurrences include the Mount Seabrook talc mine, Western Australia, formed upon a polydeformed, layered ultramafic intrusion. The France-based
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Talc is widely used in the ceramics industry in both bodies and glazes. In low-fire art-ware bodies, it imparts whiteness and increases thermal expansion to resist
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Talc is also found as a diagenetic mineral in sedimentary rocks where it can form from the transformation of metastable hydrated magnesium-clay precursors such as
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imposition of liability against Johnson & Johnson stated, and concluded that Echeverria did not adequately establish that talc causes ovarian cancer.
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Gruber, James (November–December 2019). "Do Cosmetic Consumers Really Know What Ingredients They Are Using? An Inquiry into the Search for the 'Truth'".
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In May 2016, a South Dakota woman was awarded $ 55 million as the result of another lawsuit against J&J. The woman had used Johnson & Johnson's
2708: 1416:(at a heating requirement of around 650 °C for talc compared to 1500 °C for limestone to produce Portland cement), while it absorbs far more 3326: 1734:
In October 2016, a St. Louis jury awarded $ 70.1 million to a Californian woman with ovarian cancer who had used Johnson's Baby Powder for 45 years.
1502:). It is inserted into the space via a chest tube, causing it to close up, so fluid cannot collect there. The product can be sterilized by dry heat, 885:
content, with more aluminous rocks favoring production of kyanite. This is typically associated with high-pressure, low-temperature minerals such as
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Patents are pending on the use of magnesium silicate as a cement substitute. Its production requirements are less energy-intensive than ordinary
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and rubber gloves during manufacture to keep the surfaces from sticking. Talcum powder, with heavy refinement, has been used in baby powder, an
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Suspicions have been raised that talc use contributes to certain types of disease, mainly cancers of the ovaries and lungs. According to the
3217: 3153: 602:, in the presence of carbon dioxide and water. This is known as "talc carbonation" or "steatization" and produces a suite of rocks known as 1177: 4688: 4678: 4442: 3082: 3015: 4663: 2905: 2104: 1882: 135: 2500: 1921: 1507: 2038:
Strauss, Justin V.; MacDonald, Francis A.; Halverson, Galen P.; Tosca, Nicholas J.; Schrag, Daniel P.; Knoll, Andrew H. (2015).
3135: 4197: 4188: 2401: 1929: 1252: 277: 1048:. Prime examples of whiteschists include the Franciscan Metamorphic Belt of the western United States, the western European 1002:
View of trioctahedral sheet of talc. Yellow spheres are hydroxyl; blue are magnesium. Apical oxygen binding sites are white.
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Talc is used in the production of the materials that are widely used in the building interiors such as base content
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per tonne used. This contrasts with a positive carbon footprint of 0.4 tonnes per tonne of conventional cement.
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One particular issue with commercial use of talc is its frequent co-location in underground deposits with
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Henderson WJ, Joslin CA, Turnbull AC, Griffiths K (1971). "Talc and carcinoma of the ovary and cervix".
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Rudenko, Pavlo; Bandyopadhyay, Amit (2013). "Talc as friction-reducing additive to lubricating oil".
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to disparage company's products, while defendants say the lawsuits are meant to silence scientists.
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Does baby powder cause cancer? Another jury thinks so, awarding $ 70 million to a California woman
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Harlow, Cramer, Bell; et al. (1992). "Perineal exposure to talc and ovarian cancer risk".
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Anthony, John W.; Bideaux, Richard A.; Bladh, Kenneth W.; Nichols, Monte C., eds. (1995).
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concluded in 2015 that talc, in the concentrations currently used in cosmetics, is safe.
1324:, small percentages of talc are used to flux the body and therefore improve strength and 2294: 2170:"China, Brazil, the U.S. and India Remain the Major Consumers on the Global Talc Market" 2055: 1829: 966:. The trioctahedral sheet has an equal positive charge, since its bulk composition is Mg 718:
Talc can also be formed via a reaction between dolomite and silica, which is typical of
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At least 1,200 to 2,000 other talcum powder-related lawsuits were pending as of 2016.
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is the world's largest supplier of mined talc. Its largest talc mine at Trimouns near
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View of tetrahedral sheet structure of talc. The apical oxygen ions are tinted pink.
562:. In ancient times, the word was used for various related minerals, including talc, 4612: 4456: 4371: 4305: 4110: 3953: 3948: 3749: 3658: 3644: 3624: 3471: 3222: 1783: 1777: 1765: 1764:
In July 2023 J&J sued researchers who linked talc to cancer alleging they used
1724:. The family claimed that the use of talcum powder was responsible for her cancer. 1535: 1523: 1291: 1268: 909: 526: 413: 387: 517:, defines value 1 as the hardness of talc, the softest mineral. When scraped on a 4166: 2724: 2349: 2302: 4543: 4533: 4044: 4016: 3963: 3920: 3876: 3784: 3754: 3739: 3729: 3691: 1789: 1728: 1688:
survey failed to find asbestos in a variety of talc-containing products. A 2018
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issued a warning against inhaling talcum powder or women's using it perineally.
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Tetrahedral sheets have a negative charge, since their bulk composition is Si
17: 4504: 4465: 4381: 4351: 4346: 4336: 4316: 4077: 4054: 4036: 4021: 4011: 4003: 3978: 3958: 3910: 3857: 3812: 3794: 3774: 3696: 3668: 3516: 3501: 3034:"J&J to replace talc-based powder with cornstarch after cancer lawsuits" 3016:"Johnson & Johnson shareholders called on to end talc baby powder sales" 2896:
Plummer, Charles C.; Carlson, Diane H.; Hammersley, Lisa (22 January 2018).
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Hollinger, MA (1990). "Pulmonary toxicity of inhaled and intravenous talc".
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Talc crystal viewed along the axis, looking along the layers of the crystal
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for more than 35 years before being diagnosed with ovarian cancer in 2011.
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Profiles of Drug Substances, Excipients and Related Methodology, Volume 36
1786: – Rock formed by hydration and metamorphic transformation of olivine 1720:
jury awarded $ 72 million to the family of an Alabama woman who died from
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conclude that some studies have found a link, but other studies have not.
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in wall coatings. Other areas that use talc to a great extent are organic
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Talc dominantly forms from the metamorphism of magnesian minerals such as
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Similarly, in a 2014 article published in a leading cancer journal, the
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Talc is primarily formed by hydration and carbonation by this reaction:
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Talc is a common metamorphic mineral in metamorphic belts that contain
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that can precipitate from marine and lake water in certain conditions.
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and an uneven flat fracture, and it is foliated with a two-dimensional
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Woman wins $ 55M verdict against Johnson & Johnson in cancer suit
3057:"$ 417 Million Awarded in Suit Tying Johnson's Baby Powder to Cancer" 1451: 1126: 1114: 1090: 1077: 908:
Talc is a trioctahedral layered mineral; its structure is similar to
890: 855: 3108:"Professor Hanington's Speaking of Science: Does talc cause cancer?" 2621: 1208:
sheets with magnesium sandwiched between sheets in octahedral sites.
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The trioctahedral sheet has the structure of a sheet of the mineral
932:) strongly bonded to the two faces of a single trioctahedral sheet ( 3218:"Johnson & Johnson ordered to pay $ 4.7bn in talc powder claim" 4251: 3304: 3284:"Johnson & Johnson sues researchers who linked talc to cancer" 2964:"J&J knew for decades that asbestos lurked in its Baby Powder" 1607:
for humans. The study is based on limited evidence it could cause
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in southern France produces 400,000 tonnes of talc per year.
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The National Institute for Occupational Safety and Health (NIOSH)
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of dolomites by silica-flooding in contact metamorphic aureoles:
38:"Magnesium silicate" redirects here. For the synthetic form, see 4274: 3446: 3343: 1550: 1495: 1467: 1307: 1240: 1130: 1049: 940:
layers that gives talc its perfect basal cleavage and softness.
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Foliated to fibrous masses, rare as platey to pyramidal crystals
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oxygen ion) is available to bond with the trioctahedral sheet.
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Talc can also be formed from magnesium chlorite and quartz in
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Jury awards $ 417M in lawsuit linking talcum powder to cancer
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Gertig, D. M.; Hunter, D. J.; Cramer, D. W.; Colditz, G. A.;
1538:(unclassifiable as to carcinogenicity in humans). Reviews by 1482:
63256-200-05) is a sclerosing agent used in the procedure of
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Structural groups mainly; based on rruff.info/ima, modified
2493:"Worker Health Study Summaries – Talc Miners & Millers" 1780: – Aluminium silicate hydroxide phyllosilicate mineral 1565:
report, which found that cosmetic grade talc containing no
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In this reaction, the ratio of talc and kyanite depends on
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Flat surfaces (not cleavage), fracture in an uneven pattern
2607:"Talc – Potential Risk of Lung Effects and Ovarian Cancer" 1494:(an abnormal collection of fluid in the space between the 1424:
overall, as the cement substitute removes 0.6 tonnes of CO
1164:, Afghanistan, has led the international monitoring group 2709:"Perineal Talc Use and Ovarian Cancer: A Critical Review" 1964: 1212:
Talc is used in many industries, including paper making,
3257:"J&J strikes US states deal over baby powder claims" 2989:"Johnson & Johnson stops selling baby powder in US" 2707:
Muscat, Joshua E.; Huncharek, Michael S. (April 2008).
2219:. Babycenter.com (2017-05-01). Retrieved on 2017-05-06. 1263:
Soapstone (massive talc) is often used as a marker for
2665:; Willett, W. C.; Hankinson, S. E. (2 February 2000). 2188:"Talc: the everyday mineral funding Afghan insurgents" 3131: 3129: 1712:
In February 2016, as the result of a lawsuit against
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National Institute for Occupational Safety and Health
1105:. Talc-carbonate ultramafics are also known from the 974:
The combined TOT layer thus is electrically neutral.
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investigation asserted that pharmaceuticals company
1569:-like fibres was correlated with tumor formation in 4593: 4575: 4552: 4503: 4464: 4101: 4063: 4035: 4002: 3939: 3871: 3803: 3710: 3667: 3643: 3615: 3342: 2853:. Centers for Disease Control and Prevention. 2011. 2825:"WHO agency says talc is 'probably' cancer-causing" 2467:
National Toxicology Program Technical Report Series
396: 383: 373: 363: 337: 329: 319: 309: 299: 289: 276: 264: 254: 241: 231: 220: 215: 193: 174: 160: 144: 134: 124: 93: 83: 78: 64: 2667:"Prospective Study of Talc Use and Ovarian Cancer" 2099:. New York: Oxford University Press. p. 238. 2050:(10). American Journal of Science (AJS): 881–944. 928:layers in turn consist of two tetrahedral sheets ( 1651:in table salt in concentrations smaller than 2%. 2758:"Perineal Powder Use and Risk of Ovarian Cancer" 1260:-based ointments are a much safer alternative. 1040:(a high-talc rock), and within whiteschist and 1522:, talc containing asbestos is classified as a 1306:. Talc may be used in the processing of white 4436: 4290: 4182: 3320: 2900:(Sixteenth ed.). McGraw-Hill Education. 2762:JNCI Journal of the National Cancer Institute 2674:JNCI Journal of the National Cancer Institute 2373:, International Agency for Research on Cancer 2317:Revealed: The cement that eats carbon dioxide 1621:Occupational Safety and Health Administration 1086:ultramafics are typical of many areas of the 451:. Talc in powdered form, often combined with 27:"Talcum" redirects here. For other uses, see 8: 2548:: CS1 maint: multiple names: authors list ( 1870:An Introduction to the Rock-Forming Minerals 1754:in its products for more than four decades. 1561:. One of these, published in 1993, was a US 2334:"Management of Malignant Pleural Effusions" 2332:American Thoracic Society (November 2000). 2217:"Is it safe to use baby powder on my baby?" 1707:International Agency for Research on Cancer 1601:International Agency for Research on Cancer 1347:Loss on ignition at 1000 °C, wt % 1310:as a buffing agent in the polishing stage. 1227:In finely ground form, talc finds use as a 978:pseudotrigonal character of talc crystals. 920:layers weakly bonded to each other by weak 211:c = 18.95 , β = 99.3°; Z = 4 207:β = 119.90°, γ = 90.09°; Z = 2 or 4443: 4429: 4421: 4297: 4283: 4275: 4189: 4175: 4167: 3327: 3313: 3305: 2952:. U.S. Food and Drug Administration. 2010. 2867:. U.S. Food and Drug Administration. 2009. 1900: 1898: 1896: 1894: 1526:(carcinogenic to humans), talc use in the 1420:as it hardens. This results in a negative 1052:especially in Italy, certain areas of the 916:, meaning that it is composed of parallel 2781: 2732: 2063: 1837: 57:Hydrated magnesium phyllosilicate mineral 2851:"NIOSH Pocket Guide to Chemical Hazards" 2257:"What Is Soapstone Used for in Welding?" 1867:; R. A. Howie; J. Zussman, eds. (1992). 1629:immediately dangerous to life and health 1590:Journal of the National Cancer Institute 1337: 447: 443: 439: 435: 392:Short UV: orange yellow; long UV: yellow 117: 113: 109: 105: 3156:. The Chronicle Herald (21 August 2017) 1802: 1594:Cosmetic Ingredient Review Expert Panel 1200:The structure of talc is composed of Si 980: 3144:(2016-10-28). Retrieved on 2017-05-06. 2627:Regulatory Toxicology and Pharmacology 2541: 2456: 2454: 61: 2713:European Journal of Cancer Prevention 2620:Harlow, BL; Hartge, PA (April 1995). 2461:National Toxicology, Program (1993). 2155: 2143: 2131: 2119: 1859: 1857: 1582:European Journal of Cancer Prevention 491:masses, and in an exceptionally rare 166:Either prismatic (2m) or pinacoidal ( 7: 3055:Rabin, Roni Caryn (22 August 2017). 1916:. Vol. II (Silica, Silicates). 1812:"IMA–CNMNC approved mineral symbols" 1643:considers talc (magnesium silicate) 1335:ISO standard for quality (ISO 3262) 4596:of aluminium, calcium and magnesium 3191:Frankel, Alison (24 October 2017). 1278:or in pharmaceutical products as a 556: 4451:Drugs for acid related disorders: 2577:10.1111/j.1471-0528.1971.tb00267.x 1350:Solubility in HCl, max. wt % 936:). It is the weak bonding between 479:. It is a main ingredient in many 209:a = 5.287 Å, b = 9.158 Å 25: 3282:Knauth, Dietrich (13 July 2023). 1282:. In medicine, talc is used as a 4404: 4148: 3166:Bellon, Tina (21 October 2017). 2503:from the original on 7 July 2022 1922:Mineralogical Society of America 1672:family. Serpentine minerals are 1160:Extraction in disputed areas of 1007: 995: 983: 539:composed predominantly of talc. 70: 2230:"Why Do Welders Use Soapstone?" 2168:Sergeeva, Anna (18 July 2018). 227:, brown, white, grey, colorless 4198:Mohs scale of mineral hardness 3216:Butler, Sarah (13 July 2018). 3014:Perkins, Tom (27 April 2022). 2431:(2): 121–7, discussion 117–9. 2255:Young, Pierre (10 June 2020). 1253:American Academy of Pediatrics 843:metamorphism by the following 510:of mineral hardness, based on 1: 2865:"Code of Federal Regulations" 2315:Jha, Alok (31 December 2008) 1446:Talc is sometimes used as an 3246:. NY Daily News (3 May 2016) 2922:"Is talcum powder asbestos?" 2883:Minerals Education Coalition 2725:10.1097/CEJ.0b013e32811080ef 2565:J Obstet Gynaecol Br Commonw 2437:10.1016/0378-4274(90)90145-C 2350:10.1164/ajrccm.162.5.ats8-00 2303:10.1016/j.apsusc.2013.03.102 1985:Minerals Education Coalition 1792: – Nesosilicate mineral 1645:generally recognized as safe 1641:Food and Drug Administration 459:. This mineral is used as a 205:c = 5.290 Å; α = 98.68° 40:synthetic magnesium silicate 2044:American Journal of Science 2024:Online Etymology Dictionary 1563:National Toxicology Program 1486:. This can be helpful as a 1286:agent to prevent recurrent 4715: 4689:Minerals in space group 15 4594:Combinations and complexes 3452:Fluorotetraferriphlogopite 3081:McLean, Rob (3 May 2016). 3036:. BBC News. 12 August 2022 2097:Introduction to mineralogy 2095:Nesse, William D. (2000). 1740:Los Angeles Superior Court 1619:In the United States, the 37: 26: 4679:Minerals in space group 2 4400: 4312: 4204: 4139: 2829:Philippine Daily Inquirer 2524:Obstetrics and Gynecology 2411:, American Cancer Society 2338:Am J Respir Crit Care Med 1746:In July 2018, a court in 1655:Association with asbestos 467:. It is an ingredient in 69: 4664:IARC Group 3 carcinogens 2407:20 November 2016 at the 2402:Talcum Powder and Cancer 2383:Talcum powder and cancer 1603:listed talc as probably 305:White jot to pearl black 2371:List of Classifications 2283:Applied Surface Science 1544:American Cancer Society 1247:powder used to prevent 1056:, and some collisional 495:form. It has a perfect 29:Talcum (disambiguation) 4529:Aluminium acetoacetate 3427:Ferroaluminoceladonite 2640:10.1006/rtph.1995.1039 2388:15 August 2012 at the 1914:Handbook of Mineralogy 1817:Mineralogical Magazine 1209: 1193: 1064:, which stretch along 1029: 583: 379:Weak in dark varieties 4514:Aceglutamide aluminum 3112:Elko Daily Free Press 2686:10.1093/jnci/92.3.249 1714:Johnson & Johnson 1694:Johnson & Johnson 1478:Sterile talc powder ( 1344:Talc content min. wt% 1274:Talc is also used as 1199: 1191: 1027: 581: 136:Strunz classification 4694:Luminescent minerals 4507:(decreases motility) 4468:(increases motility) 2261:Welding Headquarters 2158:, pp. 239, 242. 1810:Warr, L. N. (2021). 1647:(GRAS) to use as an 1549:The studies discuss 1466:inflammation in the 1458:use, it may lead to 1328:. It is a source of 922:van der Waals forces 845:metamorphic reaction 285:1 (defining mineral) 4684:Monoclinic minerals 4669:Clay minerals group 4654:Cosmetics chemicals 4539:Aluminium glycinate 4524:Aluminium phosphate 4490:Magnesium hydroxide 4475:Magnesium carbonate 4411:Minerals portal 4155:Minerals portal 3442:Fluorokinoshitalite 2774:10.1093/jnci/dju208 2609:. 19 November 2018. 2392:, Cancerresearch.uk 2295:2013ApSS..276..383R 2134:, pp. 235–237. 2056:2015AmJS..315..881S 1918:Chantilly, Virginia 1839:10.1180/mgm.2021.43 1830:2021MinM...85..291W 1474:Sterile talc powder 1028:Talc output in 2005 515:hardness comparison 225:Light to dark green 4699:E-number additives 4674:Triclinic minerals 4649:Symbols of Vermont 4644:Magnesium minerals 4585:Sodium bicarbonate 4495:Magnesium silicate 4485:Magnesium peroxide 3061:The New York Times 2950:"Talc Ingredients" 2930:. 16 February 1990 2807:Skeptical Inquirer 2424:Toxicology Letters 2065:10.2475/10.2015.01 1639:The United States 1599:In July 2024, the 1540:Cancer Research UK 1460:pulmonary talcosis 1251:(nappy rash). The 1210: 1194: 1168:to declare talc a 1162:Nangarhar province 1030: 584: 330:Optical properties 203:, b = 9.173 Å 4626: 4625: 4562:Calcium carbonate 4418: 4417: 4272: 4271: 4164: 4163: 3654:Ferripyrophyllite 3497:Manganiceladonite 3352:Aluminoceladonite 3263:. 23 January 2024 3114:. 15 October 2016 2927:The Straight Dope 2017:Harper, Douglas. 2005:978-0-123-87667-6 1966:Talc Mineral Data 1530:is classified as 1508:gamma irradiation 1492:pleural effusions 1410: 1409: 1170:conflict resource 1107:Lachlan Fold Belt 1103:Western Australia 899:blueschist facies 897:within the lower 403: 402: 247:Perfect on {001} 16:(Redirected from 4706: 4567:Calcium silicate 4445: 4438: 4431: 4422: 4409: 4408: 4407: 4299: 4292: 4285: 4276: 4191: 4184: 4177: 4168: 4153: 4152: 4151: 3587:Tetraferriannite 3447:Fluorophlogopite 3329: 3322: 3315: 3306: 3299: 3298: 3296: 3294: 3279: 3273: 3272: 3270: 3268: 3253: 3247: 3241: 3235: 3234: 3232: 3230: 3213: 3207: 3206: 3204: 3202: 3188: 3182: 3181: 3179: 3177: 3163: 3157: 3151: 3145: 3133: 3124: 3123: 3121: 3119: 3104: 3098: 3097: 3095: 3093: 3078: 3072: 3071: 3069: 3067: 3052: 3046: 3045: 3043: 3041: 3030: 3024: 3023: 3011: 3005: 3004: 3002: 3000: 2985: 2979: 2978: 2976: 2974: 2960: 2954: 2953: 2946: 2940: 2939: 2937: 2935: 2918: 2912: 2911: 2898:Physical Geology 2893: 2887: 2886: 2875: 2869: 2868: 2861: 2855: 2854: 2847: 2841: 2840: 2838: 2836: 2821: 2815: 2814: 2802: 2796: 2795: 2785: 2753: 2747: 2746: 2736: 2704: 2698: 2697: 2671: 2658: 2652: 2651: 2617: 2611: 2610: 2603: 2597: 2596: 2560: 2554: 2553: 2547: 2539: 2519: 2513: 2512: 2510: 2508: 2489: 2483: 2482: 2458: 2449: 2448: 2418: 2412: 2399: 2393: 2380: 2374: 2368: 2362: 2361: 2344:(5): 1987–2001. 2329: 2323: 2313: 2307: 2306: 2278: 2272: 2271: 2269: 2267: 2252: 2246: 2245: 2243: 2241: 2226: 2220: 2214: 2208: 2207: 2205: 2203: 2194:. Archived from 2184: 2178: 2177: 2165: 2159: 2153: 2147: 2141: 2135: 2129: 2123: 2117: 2111: 2110: 2092: 2086: 2085: 2067: 2035: 2029: 2028: 2014: 2008: 1995: 1989: 1988: 1977: 1971: 1970: 1969:, WebMineral.com 1961: 1955: 1954: 1942: 1936: 1935: 1911: 1902: 1889: 1888: 1873:(2nd ed.). 1861: 1852: 1851: 1841: 1807: 1649:anticaking agent 1615:Industrial grade 1488:cancer treatment 1441:detergent powder 1422:carbon footprint 1338: 1288:pleural effusion 1156:Conflict mineral 1034:ultramafic rocks 1011: 999: 987: 831: 830: 829: 823: 817: 816: 815: 809: 801: 800: 799: 781: 775: 774: 773: 766: 760: 759: 758: 752: 744: 743: 742: 732: 714: 713: 712: 705: 697: 696: 695: 689: 681: 680: 679: 661: 655: 654: 653: 647: 639: 638: 637: 619: 558: 537:metamorphic rock 477:roofing material 461:thickening agent 450: 431:chemical formula 339:Refractive index 321:Specific gravity 282: 188: 169: 120: 100: 99:(repeating unit) 88:Silicate mineral 74: 62: 21: 4714: 4713: 4709: 4708: 4707: 4705: 4704: 4703: 4639:Phyllosilicates 4629: 4628: 4627: 4622: 4595: 4589: 4571: 4548: 4499: 4480:Magnesium oxide 4460: 4449: 4419: 4414: 4405: 4403: 4396: 4357:Montmorillonite 4308: 4303: 4273: 4268: 4200: 4195: 4165: 4160: 4149: 4147: 4135: 4116:Franklinphilite 4097: 4059: 4031: 3998: 3935: 3896:Montmorillonite 3867: 3799: 3706: 3663: 3639: 3611: 3432:Ferroceladonite 3338: 3336:Phyllosilicates 3333: 3303: 3302: 3292: 3290: 3281: 3280: 3276: 3266: 3264: 3255: 3254: 3250: 3242: 3238: 3228: 3226: 3215: 3214: 3210: 3200: 3198: 3190: 3189: 3185: 3175: 3173: 3165: 3164: 3160: 3152: 3148: 3134: 3127: 3117: 3115: 3106: 3105: 3101: 3091: 3089: 3080: 3079: 3075: 3065: 3063: 3054: 3053: 3049: 3039: 3037: 3032: 3031: 3027: 3013: 3012: 3008: 2998: 2996: 2987: 2986: 2982: 2972: 2970: 2962: 2961: 2957: 2948: 2947: 2943: 2933: 2931: 2920: 2919: 2915: 2908: 2895: 2894: 2890: 2877: 2876: 2872: 2863: 2862: 2858: 2849: 2848: 2844: 2834: 2832: 2823: 2822: 2818: 2804: 2803: 2799: 2755: 2754: 2750: 2706: 2705: 2701: 2669: 2660: 2659: 2655: 2619: 2618: 2614: 2605: 2604: 2600: 2562: 2561: 2557: 2540: 2521: 2520: 2516: 2506: 2504: 2491: 2490: 2486: 2460: 2459: 2452: 2420: 2419: 2415: 2409:Wayback Machine 2400: 2396: 2390:Wayback Machine 2381: 2377: 2369: 2365: 2331: 2330: 2326: 2314: 2310: 2280: 2279: 2275: 2265: 2263: 2254: 2253: 2249: 2239: 2237: 2236:. 28 March 2021 2228: 2227: 2223: 2215: 2211: 2201: 2199: 2186: 2185: 2181: 2167: 2166: 2162: 2154: 2150: 2142: 2138: 2130: 2126: 2118: 2114: 2107: 2094: 2093: 2089: 2037: 2036: 2032: 2016: 2015: 2011: 1996: 1992: 1979: 1978: 1974: 1963: 1962: 1958: 1944: 1943: 1939: 1932: 1909: 1904: 1903: 1892: 1885: 1863: 1862: 1855: 1809: 1808: 1804: 1799: 1774: 1703: 1674:sheet silicates 1657: 1637: 1617: 1516: 1476: 1427: 1414:Portland cement 1300:additive number 1207: 1203: 1186: 1158: 1121:, and from the 1022: 1015: 1012: 1003: 1000: 991: 988: 973: 969: 965: 961: 828: 824: 821: 820: 819: 814: 810: 805: 804: 803: 798: 794: 790: 786: 782: 779: 778: 777: 771: 767: 764: 763: 762: 757: 753: 748: 747: 746: 741: 737: 733: 728: 727: 726: 710: 706: 701: 700: 699: 694: 690: 685: 684: 683: 678: 674: 670: 666: 662: 659: 658: 657: 652: 648: 643: 642: 641: 636: 632: 628: 624: 620: 615: 614: 613: 604:talc carbonates 582:A block of talc 576: 545: 483:. It occurs as 449: 445: 441: 437: 433: 359:= 1.589 – 1.600 358: 354: 353:= 1.589 – 1.594 352: 348: 347:= 1.538 – 1.550 346: 280: 210: 208: 206: 204: 199:a = 5.291  186: 167: 119: 115: 111: 107: 103: 98: 97: 58: 55: 49: 45: 36: 23: 22: 15: 12: 11: 5: 4712: 4710: 4702: 4701: 4696: 4691: 4686: 4681: 4676: 4671: 4666: 4661: 4656: 4651: 4646: 4641: 4631: 4630: 4624: 4623: 4621: 4620: 4615: 4610: 4605: 4599: 4597: 4591: 4590: 4588: 4587: 4581: 4579: 4573: 4572: 4570: 4569: 4564: 4558: 4556: 4550: 4549: 4547: 4546: 4541: 4536: 4531: 4526: 4521: 4516: 4510: 4508: 4501: 4500: 4498: 4497: 4492: 4487: 4482: 4477: 4471: 4469: 4462: 4461: 4450: 4448: 4447: 4440: 4433: 4425: 4416: 4415: 4401: 4398: 4397: 4395: 4394: 4389: 4384: 4379: 4374: 4369: 4364: 4359: 4354: 4349: 4344: 4339: 4334: 4329: 4324: 4319: 4313: 4310: 4309: 4304: 4302: 4301: 4294: 4287: 4279: 4270: 4269: 4267: 4266: 4260: 4254: 4248: 4242: 4236: 4230: 4224: 4218: 4212: 4205: 4202: 4201: 4196: 4194: 4193: 4186: 4179: 4171: 4162: 4161: 4159: 4158: 4144: 4140: 4137: 4136: 4134: 4133: 4128: 4123: 4121:Lennilenapeite 4118: 4113: 4107: 4105: 4103:Stilpnomelanes 4099: 4098: 4096: 4095: 4090: 4085: 4080: 4075: 4069: 4067: 4061: 4060: 4058: 4057: 4052: 4050:Ferrisepiolite 4047: 4041: 4039: 4033: 4032: 4030: 4029: 4024: 4019: 4014: 4008: 4006: 4000: 3999: 3997: 3996: 3991: 3986: 3981: 3976: 3971: 3966: 3961: 3956: 3951: 3945: 3943: 3937: 3936: 3934: 3933: 3928: 3923: 3918: 3913: 3908: 3903: 3898: 3893: 3888: 3882: 3880: 3869: 3868: 3866: 3865: 3860: 3855: 3850: 3845: 3840: 3835: 3830: 3825: 3820: 3818:Brinrobertsite 3815: 3809: 3807: 3801: 3800: 3798: 3797: 3792: 3787: 3782: 3777: 3772: 3767: 3762: 3757: 3752: 3747: 3742: 3737: 3732: 3727: 3722: 3716: 3714: 3708: 3707: 3705: 3704: 3699: 3694: 3689: 3684: 3679: 3677:Bismutoferrite 3673: 3671: 3665: 3664: 3662: 3661: 3656: 3650: 3648: 3641: 3640: 3638: 3637: 3632: 3627: 3621: 3619: 3613: 3612: 3610: 3609: 3607:Yangzhumingite 3604: 3599: 3594: 3589: 3584: 3579: 3574: 3572:Siderophyllite 3569: 3564: 3559: 3557:Polylithionite 3554: 3549: 3544: 3539: 3534: 3529: 3524: 3519: 3514: 3509: 3504: 3499: 3494: 3489: 3484: 3479: 3474: 3469: 3464: 3459: 3454: 3449: 3444: 3439: 3434: 3429: 3424: 3419: 3414: 3409: 3404: 3399: 3394: 3389: 3384: 3379: 3374: 3369: 3364: 3359: 3354: 3348: 3346: 3340: 3339: 3334: 3332: 3331: 3324: 3317: 3309: 3301: 3300: 3274: 3248: 3236: 3208: 3183: 3158: 3146: 3125: 3099: 3073: 3047: 3025: 3006: 2980: 2955: 2941: 2913: 2906: 2888: 2870: 2856: 2842: 2816: 2797: 2748: 2719:(2): 139–146. 2699: 2680:(3): 249–252. 2663:Speizer, F. E. 2653: 2612: 2598: 2571:(3): 266–272. 2555: 2514: 2484: 2450: 2413: 2394: 2375: 2363: 2324: 2308: 2273: 2247: 2234:Welders Manual 2221: 2209: 2198:on 24 May 2018 2192:Global Witness 2179: 2160: 2148: 2146:, p. 238. 2136: 2124: 2122:, p. 235. 2112: 2105: 2087: 2030: 2009: 1990: 1972: 1956: 1937: 1930: 1890: 1883: 1853: 1824:(3): 291–320. 1801: 1800: 1798: 1795: 1794: 1793: 1787: 1781: 1773: 1770: 1722:ovarian cancer 1702: 1699: 1666:white asbestos 1656: 1653: 1636: 1633: 1616: 1613: 1609:ovarian cancer 1559:ovarian cancer 1515: 1512: 1504:ethylene oxide 1475: 1472: 1425: 1418:carbon dioxide 1408: 1407: 1404: 1401: 1398: 1394: 1393: 1390: 1387: 1384: 1380: 1379: 1376: 1373: 1370: 1366: 1365: 1362: 1359: 1356: 1352: 1351: 1348: 1345: 1342: 1296:European Union 1205: 1201: 1185: 1182: 1166:Global Witness 1157: 1154: 1099:Yilgarn Craton 1093:, notably the 1084:Talc carbonate 1054:Musgrave Block 1021: 1018: 1017: 1016: 1013: 1006: 1004: 1001: 994: 992: 989: 982: 971: 967: 963: 959: 864: 863: 862:+ talc + water 833: 832: 826: 822:carbon dioxide 812: 796: 792: 788: 784: 769: 755: 739: 735: 720:skarnification 716: 715: 708: 692: 676: 672: 668: 664: 650: 645:carbon dioxide 634: 630: 626: 622: 575: 572: 544: 541: 497:basal cleavage 401: 400: 398: 394: 393: 390: 381: 380: 377: 371: 370: 367: 361: 360: 356: 350: 344: 341: 335: 334: 331: 327: 326: 323: 317: 316: 313: 307: 306: 303: 297: 296: 295:Waxy or pearly 293: 287: 286: 283: 274: 273: 268: 262: 261: 258: 252: 251: 249:basal cleavage 245: 239: 238: 235: 229: 228: 222: 218: 217: 216:Identification 213: 212: 197: 191: 190: 178: 172: 171: 164: 158: 157: 148: 146:Crystal system 142: 141: 138: 132: 131: 128: 122: 121: 101: 91: 90: 85: 81: 80: 76: 75: 67: 66: 56: 47: 43: 24: 14: 13: 10: 9: 6: 4: 3: 2: 4711: 4700: 4697: 4695: 4692: 4690: 4687: 4685: 4682: 4680: 4677: 4675: 4672: 4670: 4667: 4665: 4662: 4660: 4657: 4655: 4652: 4650: 4647: 4645: 4642: 4640: 4637: 4636: 4634: 4619: 4616: 4614: 4611: 4609: 4606: 4604: 4601: 4600: 4598: 4592: 4586: 4583: 4582: 4580: 4578: 4574: 4568: 4565: 4563: 4560: 4559: 4557: 4555: 4551: 4545: 4542: 4540: 4537: 4535: 4532: 4530: 4527: 4525: 4522: 4520: 4517: 4515: 4512: 4511: 4509: 4506: 4502: 4496: 4493: 4491: 4488: 4486: 4483: 4481: 4478: 4476: 4473: 4472: 4470: 4467: 4463: 4458: 4454: 4446: 4441: 4439: 4434: 4432: 4427: 4426: 4423: 4413: 4412: 4399: 4393: 4390: 4388: 4385: 4383: 4380: 4378: 4375: 4373: 4370: 4368: 4365: 4363: 4360: 4358: 4355: 4353: 4350: 4348: 4345: 4343: 4340: 4338: 4335: 4333: 4330: 4328: 4325: 4323: 4320: 4318: 4315: 4314: 4311: 4307: 4306:Clay minerals 4300: 4295: 4293: 4288: 4286: 4281: 4280: 4277: 4265: 4261: 4259: 4255: 4253: 4249: 4247: 4243: 4241: 4237: 4235: 4231: 4229: 4225: 4223: 4219: 4217: 4213: 4211: 4207: 4206: 4203: 4199: 4192: 4187: 4185: 4180: 4178: 4173: 4172: 4169: 4157: 4156: 4145: 4142: 4141: 4138: 4132: 4131:Stilpnomelane 4129: 4127: 4126:Parsettensite 4124: 4122: 4119: 4117: 4114: 4112: 4109: 4108: 4106: 4104: 4100: 4094: 4091: 4089: 4086: 4084: 4081: 4079: 4076: 4074: 4071: 4070: 4068: 4066: 4062: 4056: 4053: 4051: 4048: 4046: 4043: 4042: 4040: 4038: 4034: 4028: 4025: 4023: 4020: 4018: 4015: 4013: 4010: 4009: 4007: 4005: 4001: 3995: 3992: 3990: 3987: 3985: 3982: 3980: 3977: 3975: 3972: 3970: 3967: 3965: 3962: 3960: 3957: 3955: 3952: 3950: 3947: 3946: 3944: 3942: 3938: 3932: 3929: 3927: 3924: 3922: 3919: 3917: 3914: 3912: 3909: 3907: 3904: 3902: 3899: 3897: 3894: 3892: 3891:Ferrosaponite 3889: 3887: 3884: 3883: 3881: 3878: 3874: 3870: 3864: 3861: 3859: 3856: 3854: 3851: 3849: 3848:Lunijianlaite 3846: 3844: 3841: 3839: 3836: 3834: 3831: 3829: 3826: 3824: 3821: 3819: 3816: 3814: 3811: 3810: 3808: 3806: 3802: 3796: 3793: 3791: 3788: 3786: 3783: 3781: 3778: 3776: 3773: 3771: 3768: 3766: 3763: 3761: 3758: 3756: 3753: 3751: 3748: 3746: 3743: 3741: 3738: 3736: 3733: 3731: 3728: 3726: 3723: 3721: 3718: 3717: 3715: 3713: 3709: 3703: 3700: 3698: 3695: 3693: 3690: 3688: 3685: 3683: 3680: 3678: 3675: 3674: 3672: 3670: 3666: 3660: 3657: 3655: 3652: 3651: 3649: 3646: 3642: 3636: 3633: 3631: 3628: 3626: 3623: 3622: 3620: 3618: 3614: 3608: 3605: 3603: 3600: 3598: 3595: 3593: 3592:Trilithionite 3590: 3588: 3585: 3583: 3580: 3578: 3575: 3573: 3570: 3568: 3565: 3563: 3560: 3558: 3555: 3553: 3550: 3548: 3545: 3543: 3540: 3538: 3537:Oxyphlogopite 3535: 3533: 3530: 3528: 3525: 3523: 3520: 3518: 3515: 3513: 3510: 3508: 3505: 3503: 3500: 3498: 3495: 3493: 3492:Luanshiweiite 3490: 3488: 3485: 3483: 3482:Kinoshitalite 3480: 3478: 3475: 3473: 3470: 3468: 3465: 3463: 3460: 3458: 3455: 3453: 3450: 3448: 3445: 3443: 3440: 3438: 3435: 3433: 3430: 3428: 3425: 3423: 3420: 3418: 3415: 3413: 3410: 3408: 3407:Chromphyllite 3405: 3403: 3400: 3398: 3395: 3393: 3390: 3388: 3387:Boromuscovite 3385: 3383: 3380: 3378: 3375: 3373: 3370: 3368: 3365: 3363: 3360: 3358: 3355: 3353: 3350: 3349: 3347: 3345: 3341: 3337: 3330: 3325: 3323: 3318: 3316: 3311: 3310: 3307: 3289: 3285: 3278: 3275: 3262: 3258: 3252: 3249: 3245: 3240: 3237: 3225: 3224: 3219: 3212: 3209: 3197: 3194: 3187: 3184: 3172: 3169: 3162: 3159: 3155: 3150: 3147: 3143: 3142: 3137: 3132: 3130: 3126: 3113: 3109: 3103: 3100: 3088: 3084: 3077: 3074: 3062: 3058: 3051: 3048: 3035: 3029: 3026: 3021: 3017: 3010: 3007: 2995:. 20 May 2020 2994: 2990: 2984: 2981: 2969: 2965: 2959: 2956: 2951: 2945: 2942: 2929: 2928: 2923: 2917: 2914: 2909: 2907:9781260091656 2903: 2899: 2892: 2889: 2884: 2880: 2874: 2871: 2866: 2860: 2857: 2852: 2846: 2843: 2831:. 6 July 2024 2830: 2826: 2820: 2817: 2812: 2808: 2801: 2798: 2793: 2789: 2784: 2779: 2775: 2771: 2768:(9): dju208. 2767: 2763: 2759: 2752: 2749: 2744: 2740: 2735: 2730: 2726: 2722: 2718: 2714: 2710: 2703: 2700: 2695: 2691: 2687: 2683: 2679: 2675: 2668: 2664: 2657: 2654: 2649: 2645: 2641: 2637: 2634:(2): 254–60. 2633: 2629: 2628: 2623: 2616: 2613: 2608: 2602: 2599: 2594: 2590: 2586: 2582: 2578: 2574: 2570: 2566: 2559: 2556: 2551: 2545: 2537: 2533: 2529: 2525: 2518: 2515: 2502: 2498: 2494: 2488: 2485: 2480: 2476: 2472: 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1782: 1779: 1776: 1775: 1771: 1769: 1767: 1762: 1758: 1755: 1753: 1749: 1744: 1741: 1735: 1732: 1730: 1725: 1723: 1719: 1716:(J&J), a 1715: 1710: 1708: 1700: 1698: 1695: 1691: 1687: 1683: 1679: 1675: 1671: 1667: 1662: 1654: 1652: 1650: 1646: 1642: 1634: 1632: 1630: 1626: 1622: 1614: 1612: 1610: 1606: 1602: 1597: 1595: 1591: 1586: 1583: 1578: 1576: 1575:Health Canada 1572: 1568: 1564: 1560: 1556: 1552: 1547: 1545: 1541: 1537: 1533: 1529: 1525: 1524:group 1 agent 1521: 1513: 1511: 1509: 1505: 1501: 1500:thoracic wall 1497: 1493: 1489: 1485: 1481: 1473: 1471: 1469: 1465: 1464:granulomatous 1461: 1457: 1453: 1449: 1444: 1442: 1438: 1434: 1429: 1423: 1419: 1415: 1405: 1402: 1399: 1396: 1395: 1391: 1388: 1385: 1382: 1381: 1377: 1374: 1371: 1368: 1367: 1363: 1360: 1357: 1354: 1353: 1349: 1346: 1343: 1340: 1339: 1336: 1333: 1331: 1327: 1326:vitrification 1323: 1319: 1314: 1311: 1309: 1305: 1301: 1297: 1293: 1289: 1285: 1281: 1277: 1276:food additive 1272: 1270: 1266: 1261: 1259: 1254: 1250: 1246: 1242: 1238: 1234: 1233:talcum powder 1230: 1225: 1223: 1219: 1215: 1198: 1192:Talcum powder 1190: 1183: 1181: 1179: 1178:Islamic State 1175: 1171: 1167: 1163: 1155: 1153: 1151: 1147: 1146:Luzenac Group 1142: 1138: 1136: 1132: 1128: 1124: 1120: 1119:Guiana Shield 1116: 1112: 1108: 1104: 1100: 1097:belts of the 1096: 1092: 1089: 1085: 1081: 1079: 1075: 1071: 1067: 1063: 1059: 1055: 1051: 1047: 1043: 1039: 1035: 1026: 1019: 1010: 1005: 998: 993: 986: 981: 979: 975: 956: 954: 949: 947: 941: 939: 935: 931: 927: 923: 919: 915: 911: 906: 904: 900: 896: 892: 888: 884: 879: 877: 873: 869: 861: 857: 853: 850: 849: 848: 846: 842: 838: 808: 751: 731: 725: 724: 723: 721: 704: 688: 646: 618: 612: 611: 610: 607: 605: 601: 597: 593: 589: 580: 573: 571: 569: 565: 561: 554: 551:derives from 550: 542: 540: 538: 534: 530: 528: 527:mineral acids 524: 520: 516: 513: 509: 504: 502: 498: 494: 490: 486: 482: 478: 474: 470: 466: 462: 458: 455:, is used as 454: 432: 428: 425: 422: 418: 415: 411: 407: 399: 395: 391: 389: 386: 382: 378: 376: 372: 368: 366: 365:Birefringence 362: 342: 340: 336: 332: 328: 324: 322: 318: 314: 312: 308: 304: 302: 298: 294: 292: 288: 284: 279: 275: 272: 269: 267: 263: 259: 257: 253: 250: 246: 244: 240: 236: 234: 233:Crystal habit 230: 226: 223: 219: 214: 202: 198: 196: 192: 189: 182: 179: 177: 173: 165: 163: 162:Crystal class 159: 156: 152: 149: 147: 143: 139: 137: 133: 129: 127: 123: 102: 96: 92: 89: 86: 82: 77: 73: 68: 63: 60: 53: 41: 34: 30: 19: 18:Talcum powder 4613:Hydrotalcite 4494: 4402: 4391: 4372:Palygorskite 4209: 4146: 4111:Bannisterite 4065:Pyrosmalites 3954:Borocookeite 3949:Baileychlore 3931:Yakhontovite 3926:Volkonskoite 3916:Swinefordite 3833:Hydrobiotite 3750:Cronstedtite 3659:Pyrophyllite 3645:Pyrophyllite 3629: 3625:Minnesotaite 3616: 3562:Preiswerkite 3507:Masutomilite 3472:Hendricksite 3291:. Retrieved 3287: 3277: 3265:. Retrieved 3260: 3251: 3239: 3227:. Retrieved 3223:The Guardian 3221: 3211: 3199:. Retrieved 3195: 3186: 3174:. Retrieved 3170: 3161: 3149: 3139: 3116:. Retrieved 3111: 3102: 3090:. Retrieved 3086: 3076: 3064:. Retrieved 3060: 3050: 3038:. Retrieved 3028: 3020:The Guardian 3019: 3009: 2997:. Retrieved 2992: 2983: 2971:. Retrieved 2967: 2958: 2944: 2932:. Retrieved 2925: 2916: 2897: 2891: 2882: 2873: 2859: 2845: 2833:. Retrieved 2819: 2810: 2806: 2800: 2765: 2761: 2751: 2716: 2712: 2702: 2677: 2673: 2656: 2631: 2625: 2615: 2601: 2568: 2564: 2558: 2544:cite journal 2530:(1): 19–26. 2527: 2523: 2517: 2505:. Retrieved 2496: 2487: 2470: 2466: 2428: 2422: 2416: 2397: 2378: 2366: 2341: 2337: 2327: 2321:The Guardian 2320: 2311: 2286: 2282: 2276: 2264:. Retrieved 2260: 2250: 2238:. Retrieved 2233: 2224: 2212: 2200:. Retrieved 2196:the original 2191: 2182: 2173: 2163: 2151: 2139: 2127: 2115: 2096: 2090: 2047: 2043: 2033: 2022: 2012: 1997: 1993: 1984: 1975: 1965: 1959: 1946: 1940: 1913: 1868: 1821: 1815: 1805: 1784:Serpentinite 1778:Pyrophyllite 1766:junk science 1763: 1759: 1756: 1745: 1736: 1733: 1726: 1711: 1705:In 2006 the 1704: 1668:, is in the 1658: 1638: 1618: 1605:carcinogenic 1598: 1587: 1579: 1548: 1517: 1477: 1445: 1430: 1411: 1334: 1315: 1312: 1303: 1292:pneumothorax 1273: 1269:metalworking 1262: 1232: 1226: 1211: 1159: 1143: 1139: 1082: 1060:such as the 1044:metamorphic 1031: 976: 957: 950: 945: 942: 937: 933: 929: 925: 917: 913: 910:pyrophyllite 907: 880: 865: 834: 717: 608: 585: 559: 548: 546: 531: 519:streak plate 505: 414:clay mineral 409: 405: 404: 388:fluorescence 184: 180: 59: 4544:Carbaldrate 4534:Aloglutamol 4093:Schallerite 4088:Pyrosmalite 4045:Falcondoite 4017:Chrysocolla 3964:Clinochlore 3921:Vermiculite 3877:vermiculite 3838:Karpinskite 3805:Corrensites 3780:Manandonite 3765:Guidottiite 3755:Fraipontite 3740:Caryopilite 3735:Brindleyite 3730:Berthierine 3712:Serpentines 3692:Hisingerite 3635:Willemseite 3597:Voloshinite 3467:Gorbunovite 3437:Fluorannite 3402:Chernykhite 3372:Balestraite 2973:15 December 2289:: 383–389. 1790:Sillimanite 1729:Baby Powder 1611:in humans. 1555:lung cancer 1490:to prevent 1484:pleurodesis 1456:intravenous 1450:to illegal 1437:agriculture 1284:pleurodesis 1249:diaper rash 1241:inner tubes 1135:Middle East 903:whiteschist 895:glaucophane 457:baby powder 453:corn starch 429:, with the 385:Ultraviolet 375:Pleochroism 333:Biaxial (−) 315:Translucent 311:Diaphaneity 176:Space group 4659:Excipients 4633:Categories 4618:Magaldrate 4608:Almasilate 4519:Algeldrate 4367:Nontronite 4332:Halloysite 4240:Orthoclase 4073:Friedelite 4037:Sepiolites 4004:Allophanes 3989:Pennantite 3974:Donbassite 3901:Nontronite 3886:Beidellite 3823:Corrensite 3760:Greenalite 3745:Chrysotile 3725:Antigorite 3687:Halloysite 3669:Kaolinites 3582:Tainiolite 3567:Roscoelite 3552:Phlogopite 3542:Paragonite 3527:Norrishite 3522:Nanpingite 3512:Montdorite 3487:Lepidolite 3462:Glauconite 3412:Clintonite 3397:Celadonite 3392:Bramallite 3367:Aspidolite 2879:"Asbestos" 2156:Nesse 2000 2144:Nesse 2000 2132:Nesse 2000 2120:Nesse 2000 1952:Mindat.org 1931:0962209716 1865:W. A. Deer 1797:References 1701:Litigation 1682:food-grade 1670:serpentine 1635:Food grade 1448:adulterant 1322:stonewares 1258:Zinc oxide 1245:astringent 1133:, and the 1109:, eastern 1042:blueschist 1036:, such as 1020:Occurrence 876:stevensite 837:blueschist 617:serpentine 588:serpentine 508:Mohs scale 397:References 278:Mohs scale 151:Monoclinic 126:IMA symbol 52:forsterite 4505:Aluminium 4466:Magnesium 4382:Sepiolite 4352:Kaolinite 4347:Imogolite 4337:Hectorite 4317:Allophane 4078:Mcgillite 4055:Sepiolite 4027:Neotocite 4022:Imogolite 4012:Allophane 3979:Gonyerite 3959:Chamosite 3941:Chlorites 3911:Sauconite 3873:Smectites 3858:Saliotite 3853:Rectorite 3813:Aliettite 3795:Pecoraite 3775:Lizardite 3697:Kaolinite 3577:Suhailite 3517:Muscovite 3502:Margarite 3417:Eastonite 3092:18 August 3040:12 August 2507:31 August 2473:: 1–287. 2082:130671089 2074:0002-9599 1848:235729616 1748:St. Louis 1718:St. Louis 1678:cosmetic- 1551:pulmonary 1294:. In the 1237:lubricant 1218:soapstone 1125:belts of 1123:ophiolite 1111:Australia 1095:komatiite 1062:Himalayas 1038:soapstone 883:aluminium 872:sepiolite 734:3 CaMg(CO 687:magnesite 596:amphibole 574:Formation 547:The word 543:Etymology 533:Soapstone 481:cosmetics 465:lubricant 424:magnesium 369:δ = 0.051 325:2.58–2.83 195:Unit cell 155:triclinic 4603:Almagate 4453:Antacids 4387:Smectite 4377:Saponite 4322:Chlorite 4258:Corundum 4228:Fluorite 4083:Nelenite 3969:Cookeite 3906:Saponite 3863:Tosudite 3843:Kulkeite 3785:Népouite 3770:Kellyite 3602:Wonesite 3547:Phengite 3532:Orlovite 3422:Ephesite 3357:Anandite 3267:14 April 3261:BBC News 3141:LA Times 3087:CNNMoney 2993:BBC News 2813:(6): 54. 2792:25214560 2743:18287871 2694:10655442 2593:32300387 2501:Archived 2499:. 1995. 2479:12616290 2405:Archived 2386:Archived 2358:11069845 2174:IndexBox 1772:See also 1752:asbestos 1661:asbestos 1567:asbestos 1553:issues, 1542:and the 1532:group 2B 1528:perineum 1498:and the 1235:), as a 1229:cosmetic 1222:steatite 1088:Archaean 1066:Pakistan 1046:terranes 887:phengite 868:kerolite 852:chlorite 841:eclogite 730:dolomite 592:pyroxene 568:selenite 485:foliated 469:ceramics 427:silicate 421:hydrated 417:composed 281:hardness 266:Tenacity 256:Fracture 243:Cleavage 84:Category 42:. For Mg 4554:Calcium 4362:Nacrite 4327:Dickite 4264:Diamond 4234:Apatite 4222:Calcite 3994:Sudoite 3828:Dozyite 3790:Odinite 3720:Amesite 3702:Nacrite 3682:Dickite 3457:Garmite 3382:Biotite 3377:Bityite 3293:17 July 3288:Reuters 3229:13 July 3201:13 July 3196:Reuters 3176:13 July 3171:Reuters 3118:9 March 3066:13 July 2968:Reuters 2934:9 March 2783:4200058 2734:3621109 2648:7644715 2585:5558843 2536:1603491 2445:2198684 2291:Bibcode 2266:7 March 2240:7 March 2052:Bibcode 1826:Bibcode 1690:Reuters 1536:group 3 1361:4 – 6.5 1318:crazing 1280:glidant 1265:welding 1214:plastic 1174:Taliban 1150:Luzenac 1113:, from 1091:cratons 1058:orogens 953:brucite 860:kyanite 807:calcite 600:olivine 553:Persian 512:scratch 493:crystal 489:fibrous 412:, is a 271:Sectile 140:9.EC.05 95:Formula 79:General 4577:Sodium 4342:Illite 4246:Quartz 4216:Gypsum 3984:Nimite 3879:family 3647:series 3477:Illite 3362:Annite 2999:20 May 2904:  2835:7 July 2790:  2780:  2741:  2731:  2692:  2646:  2591:  2583:  2534:  2477:  2443:  2356:  2202:24 May 2103:  2080:  2072:  2019:"talc" 2007:p. 283 2003:  1981:"Talc" 1928:  1907:"Talc" 1881:  1846:  1557:, and 1514:Safety 1452:heroin 1433:paints 1298:, the 1127:Turkey 1117:, the 1115:Brazil 1078:Bhutan 1076:, and 946:apical 924:. The 893:, and 891:garnet 856:quartz 811:3 CaCO 750:silica 691:3 MgCO 598:, and 566:, and 523:luster 503:form. 475:, and 473:paints 410:talcum 301:Streak 291:Luster 50:, see 4252:Topaz 3617:Talcs 3344:Micas 2670:(PDF) 2589:S2CID 2078:S2CID 1910:(PDF) 1844:S2CID 1506:, or 1496:lungs 1468:lungs 1320:. In 1304:E553b 1074:Nepal 1070:India 874:, or 765:water 754:4 SiO 703:water 535:is a 501:platy 408:, or 221:Color 4457:A02A 4392:Talc 4210:Talc 3875:and 3630:Talc 3295:2023 3269:2024 3231:2018 3203:2018 3178:2018 3120:2021 3094:2016 3068:2018 3042:2022 3001:2020 2975:2018 2936:2019 2902:ISBN 2837:2024 2788:PMID 2739:PMID 2690:PMID 2644:PMID 2581:PMID 2550:link 2532:PMID 2509:2022 2475:PMID 2441:PMID 2354:PMID 2268:2022 2242:2022 2204:2018 2101:ISBN 2070:ISSN 2001:ISBN 1947:Talc 1926:ISBN 1879:ISBN 1680:and 1623:and 1571:rats 1520:IARC 1462:, a 1403:4–27 1389:4–18 1341:Type 1308:rice 1184:Uses 1176:and 1131:Oman 1050:Alps 970:(OH) 839:and 825:3 CO 795:(OH) 780:talc 675:(OH) 660:talc 649:3 CO 633:(OH) 621:2 Mg 564:mica 560:tālk 557:تالک 549:talc 506:The 463:and 446:(OH) 406:Talc 181:C2/c 116:(OH) 65:Talc 33:TALC 31:and 4262:10 2778:PMC 2770:doi 2766:106 2729:PMC 2721:doi 2682:doi 2636:doi 2573:doi 2471:421 2433:doi 2346:doi 2342:162 2299:doi 2287:276 2060:doi 2048:315 1834:doi 1686:FDA 1480:NDC 1406:30 1392:30 1378:10 1375:4–9 1330:MgO 1302:is 1290:or 1267:or 1220:or 1101:in 938:TOT 926:TOT 918:TOT 914:TOT 707:3 H 487:to 419:of 183:or 153:or 130:Tlc 46:SiO 4635:: 4256:9 4250:8 4244:7 4238:6 4232:5 4226:4 4220:3 4214:2 4208:1 3286:. 3259:. 3220:. 3138:. 3128:^ 3110:. 3085:. 3059:. 3018:. 2991:. 2966:. 2924:. 2881:. 2827:. 2811:43 2809:. 2786:. 2776:. 2764:. 2760:. 2737:. 2727:. 2717:17 2715:. 2711:. 2688:. 2678:92 2676:. 2672:. 2642:. 2632:21 2630:. 2624:. 2587:. 2579:. 2569:78 2567:. 2546:}} 2542:{{ 2528:80 2526:. 2495:. 2469:. 2465:. 2453:^ 2439:. 2429:52 2427:. 2352:. 2340:. 2336:. 2319:, 2297:. 2285:. 2259:. 2232:. 2190:. 2172:. 2076:. 2068:. 2058:. 2046:. 2042:. 2021:. 1983:. 1950:, 1924:. 1920:: 1912:. 1893:^ 1877:. 1856:^ 1842:. 1832:. 1822:85 1820:. 1814:. 1631:. 1510:. 1470:. 1443:. 1400:50 1386:70 1372:90 1364:5 1358:95 1271:. 1180:. 1137:. 1129:, 1080:. 1072:, 1068:, 964:10 905:. 889:, 870:, 858:→ 854:+ 847:: 818:+ 802:+ 793:10 787:Si 783:Mg 776:→ 761:+ 745:+ 698:+ 682:+ 673:10 667:Si 663:Mg 656:→ 640:+ 625:Si 606:. 594:, 590:, 570:. 555:: 529:. 471:, 444:10 438:Si 434:Mg 114:10 108:Si 104:Mg 4459:) 4455:( 4444:e 4437:t 4430:v 4298:e 4291:t 4284:v 4190:e 4183:t 4176:v 3328:e 3321:t 3314:v 3297:. 3271:. 3233:. 3205:. 3180:. 3122:. 3096:. 3070:. 3044:. 3022:. 3003:. 2977:. 2938:. 2910:. 2885:. 2839:. 2794:. 2772:: 2745:. 2723:: 2696:. 2684:: 2650:. 2638:: 2595:. 2575:: 2552:) 2538:. 2511:. 2481:. 2447:. 2435:: 2360:. 2348:: 2305:. 2301:: 2293:: 2270:. 2244:. 2206:. 2176:. 2109:. 2084:. 2062:: 2054:: 2027:. 1987:. 1934:. 1887:. 1850:. 1836:: 1828:: 1426:2 1397:D 1383:C 1369:B 1355:A 1231:( 1206:5 1204:O 1202:2 972:2 968:3 962:O 960:4 934:O 930:T 827:2 813:3 797:2 791:O 789:4 785:3 772:O 770:2 768:H 756:2 740:2 738:) 736:3 711:O 709:2 693:3 677:2 671:O 669:4 665:3 651:2 635:4 631:5 629:O 627:2 623:3 448:2 442:O 440:4 436:3 357:γ 355:n 351:β 349:n 345:α 343:n 201:Å 187:1 185:C 170:) 168:1 118:2 112:O 110:4 106:3 54:. 48:4 44:2 35:. 20:)

Index

Talcum powder
Talcum (disambiguation)
TALC
synthetic magnesium silicate
forsterite

Silicate mineral
Formula
IMA symbol
Strunz classification
Crystal system
Monoclinic
triclinic
Crystal class
Space group
Unit cell
Å
Light to dark green
Crystal habit
Cleavage
basal cleavage
Fracture
Tenacity
Sectile
Mohs scale
Luster
Streak
Diaphaneity
Specific gravity
Refractive index

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