611:, is a sought after collector's mineral. However, as with its viability as an ore, the solubility of the mineral causes significant problems. First, the mineral readily absorbs and releases its water content, which, over time, leads to a disintegration of the crystal structure, destroying even the finest specimens. It is critical to store specimens properly to limit exposure to humidity. Second, higher quality crystals can be easily grown synthetically, and, as such, there is a concern that disreputable mineral dealers would present a sample as natural when it is not.
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603:
means that it tends to crystallize, dissolve, and recrystallize as crusts over any mine surface in more humid regions. Therefore, chalcanthite is only found in the most arid regions in sufficiently large quantities for use as an ore.
535:
and the most common member of a group of similar hydrated sulfates, the chalcanthite group. These other sulfates are identical in chemical composition to chalcanthite, with the exception of replacement of the copper
761:, solubility and subsequent coloring of the water blue. Chalcanthite can also dye materials blue when dissolved in water, and has a peculiarly sweet and metallic taste, although consuming it can induce dangerous
619:
Given that chalcanthite is found in oxidized copper deposits, it is frequently found in association with other copper minerals. Frequently associated minerals include:
757:
Chalcanthite's blue color is one of its most notable features, but it is insufficient in identification. Other useful tests include associated minerals,
908:
471:
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89:
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Typically stalactitic, encrusted, reniform or massive. Natural crystals are rare, but are short prismatic or tabular
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493:
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57:
314:
814:
591:
Chalcanthite on limonite from
Washington Camp, Santa Cruz County, Arizona (size: 5.5 x 2.9 x 1.5 cm)
347:
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300:
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818:
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deposits. Due to its ready solubility, chalcanthite is more common in arid regions.
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777::Copper, Cu: brown :Sulfur, S: olive :Oxygen, O: red :Cell: cyan
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Secondarily, chalcanthite, due to its rich color and beautiful
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18:
524:. It is commonly found in the late-stage oxidation zones of
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Warr, L. N. (2021). "IMA–CNMNC approved mineral symbols".
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As chalcanthite is a copper mineral, it can be used as an
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49:. Unsourced material may be challenged and removed.
813:. Vol. 85, no. 3. pp. 291–320.
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599:of copper. However, its ready solubility in
500: 'flower, bloom') is a richly colored
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109:Learn how and when to remove this message
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255:β = 107.17°, γ = 77.55°; Z = 2
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251:a = 6.11 Å, b = 10.673 Å,
47:adding citations to reliable sources
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772:Crystal structure of chalcanthite
432:Soluble in water, turning it blue
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129:
23:
34:needs additional citations for
1:
253:c = 5.95 Å; α = 97.58°,
489: 'copper' and
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362:Transparent to translucent
949:Minerals in space group 2
899:Mindat Chalcanthite group
852:Chalcanthite Mineral Data
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753:Notes for identification
309:0}; interrupted on {110}
295:Rare as cruciform twins
888:Handbook of Mineralogy
810:Mineralogical Magazine
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437:Other characteristics
188:Strunz classification
583:Uses of chalcanthite
567:Other names include
43:improve this article
929:Copper(II) minerals
828:10.1180/mgm.2021.43
819:2021MinM...85..291W
615:Associated minerals
944:Chalcanthite group
939:Triclinic minerals
788:Copper(II) sulfate
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531:Chalcanthite is a
377:Optical properties
909:Mineral Galleries
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934:Sulfate minerals
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386:Refractive index
368:Specific gravity
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275:, greenish blue
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147:Sulfate mineral
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577:copper vitriol
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504:water-soluble
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260:Identification
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58:"Chalcanthite"
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759:crystal habit
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476:(khálkanthon)
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465:Ancient Greek
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422:Measured: 56°
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408:Birefringence
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305:Perfect on {1
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210:Crystal class
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60: –
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54:Find sources:
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32:This article
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21:
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871:Chalcanthite
870:
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678:Chalcopyrite
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573:blue vitriol
572:
568:
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562:pentahydrite
533:pentahydrate
530:
497:
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461:Chalcanthite
460:
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236:
214:Pinacoidal (
124:Chalcanthite
105:
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53:
41:Please help
36:verification
33:
775:Color code:
727:Melanterite
649:Brochantite
554:melanterite
478:, from
380:Biaxial (−)
358:Diaphaneity
269:Berlin blue
232:Space group
918:Categories
876:Mindat.org
794:References
569:blue stone
540:by either
502:blue-green
463:(from
452:References
428:Solubility
325:Mohs scale
319:Conchoidal
223:H-M symbol
178:IMA symbol
69:newspapers
837:235729616
740:· 7
698:Malachite
632:aragonite
628:polymorph
558:magnesium
546:jokokuite
542:manganese
487:(khalkós)
472:χάλκανθον
446:Poisonous
412:δ = 0.029
398:= 1.537 n
394:= 1.514 n
247:Unit cell
203:Triclinic
924:Hydrates
782:See also
626:and its
609:crystals
517:·5H
498:(ánthos)
418:2V angle
372:2.12–2.3
342:Vitreous
328:hardness
315:Fracture
301:Cleavage
291:Twinning
273:sky blue
167:·5H
143:Category
99:May 2017
815:Bibcode
634:, both
624:Calcite
509:mineral
506:sulfate
402:= 1.543
192:7.CB.20
154:Formula
138:General
83:scholar
835:
575:, and
526:copper
483:χαλκός
348:Streak
338:Luster
221:(same
85:
78:
71:
64:
56:
833:S2CID
601:water
556:, or
494:ἄνθος
467:
352:White
265:Color
90:JSTOR
76:books
550:iron
513:CuSO
163:CuSO
62:news
823:doi
597:ore
560:as
552:as
544:as
538:ion
332:2.5
271:to
182:Cct
45:by
920::
874:,
861:^
831:.
821:.
765:.
735:SO
732:Fe
729:,
717:OH
715:)(
710:CO
703:Cu
700:,
686:Fe
683:Cu
680:,
668:OH
666:)(
661:SO
654:Cu
651:,
640:CO
637:Ca
630:,
579:.
571:,
564:.
548:,
218:)
839:.
825::
817::
746:O
744:2
742:H
737:4
721:2
719:)
712:3
708:(
706:2
692:2
689:S
672:6
670:)
663:4
659:(
657:4
642:3
521:O
519:2
515:4
400:γ
396:β
392:α
390:n
307:1
240:1
237:P
225:)
216:1
171:O
169:2
165:4
112:)
106:(
101:)
97:(
87:·
80:·
73:·
66:·
39:.
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