Knowledge

Fineness

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24-karat gold is pure (while 100% purity is very difficult to attain, 24-karat as a designation is permitted in commerce for a minimum of 99.95% purity), 18-karat gold is 18 parts gold, 6 parts another metal (forming an alloy with 75% gold), 12-karat gold is 12 parts gold (12 parts another metal),
894:
in a less-than-24-karat gold alloy differs according to the alloys used. For example, knowing that standard 18-karat yellow gold consists of 75% gold, 12.5% silver and the remaining 12.5% of copper (all by mass), the volume of pure gold in this alloy will be 60% since gold is much denser than the
1083:
That becomes a concern because it would be possible for an unscrupulous refiner to produce precious metals bars that are slightly less pure than marked on the bar. A refiner doing $ 1 billion of business each year that marked .980 pure bars as .999 fine would make about an extra $
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20 million in profit. In the United States, the actual purity of gold articles must be no more than .003 less than the marked purity (e.g. .996 fine for gold marked .999 fine), and the actual purity of silver articles must be no more than .004 less than the marked purity.
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of pure metal by mass in the alloy. For example, an alloy containing 75% gold is denoted as "750". Many European countries use decimal hallmark stamps (i.e., "585", "750", etc.) rather than "14 k", "18 k", etc., which is used in the United Kingdom and United States.
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800: The minimum standard for silver in Germany after 1884; the French 2nd standard for silver; "plata de segunda ley" in Spain (second law silver); Egyptian silver; Canadian silver circulating coinage from 1920-1966/7 Used for the outer cladding of US
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in a perception experiment observers could discriminate differences in carob seed weight of around 5% by eye... suggesting that human rather than natural selection gave rise to the carob myth
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While there are many methods of detecting fake precious metals, there are realistically only two options available for verifying the marked fineness of metal as being reasonably accurate:
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and to be of equal grade to 925 sterling. Sometimes claimed to have arisen as a Swiss misunderstanding of the standard required for British sterling. Usually marked with three Swiss bears.
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It is an extension of the older karat system of denoting the purity of gold by fractions of 24, such as "18 karat" for an alloy with 75% (18 parts per 24) pure gold by mass.
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720: Decoplata: many Mexican and Dutch silver coins use this standard, as well as some coins from Portugal's former colonies, Japan, Uruguay, Ecuador, Egypt, and Morocco.
415:: Minimum standard for gold in some of the Commonwealth realms: Australia, Canada, New Zealand, UK, etc. It is also the minimum in Austria, Ireland, Portugal and France. 1795: 1832: 437: 1422: 1733: 1381: 647:
875: 84 zolotnik is the most common fineness for Russian silver. Swiss standard, commonly used for export watchcases (also 800 and later 935).
1903: 1864: 977:) and was a unit of mass though it was probably not used to measure gold in classical times. The Arabic term ultimately originates from the 720:
500: Standard used for making British coinage 1920–1946 as well as Canadian coins from 1967-1968, and some coins from Colombia and Brazil.
1870: 1909: 1096:
metal containing a precious metal may also have the weight of its precious component referred to as its "fine weight". For example, 1
1040: 663:
835: A standard predominantly used in Germany after 1884, and for some Dutch silver; and for the minting of coins in countries of the
1752: 1792: 1984: 1488: 1152: 1829: 837:
In England, the carat was divisible into four grains, and the grain was divisible into four quarts. For example, a gold alloy of
687: 1475: 1213: 555:
935: used in the Art Deco period in Austria and Germany. Scandinavian silver jewellers used 935 silver after the 2nd World War
1447: 1717: 408:: Lowest legal solid gold karat made in the US prior to the August 2018 revision of the FTC Guides (Now 1 karat is legal). 1598: 1103:
Most modern government-issued bullion coins specify their fine weight. For example, the American Gold Eagle is embossed
1778: 449: 1435:
In October 2007, the Million Dollar Coin was certified by Guinness World Records to be the world's largest gold coin.
549: 481: 322: 2090: 2075: 1335: 1080:(XRF). XRF will measure only the outermost portion of the piece of metal and so may get misled by thick plating. 1577: 2085: 2080: 326: 259: 181:
999.95: what most dealers would buy as if 100% pure; the most common purity for platinum bullion coins and bars
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to make a more durable alloy for use in coins, housewares and jewelry. Coin silver, which was used for making
1301: 263: 1418: 1730: 737: 1749: 1377: 422:: Minimum standard for gold in Germany after 1884. It is also the minimum for Denmark, Greece and Mexico. 1286: 442: 72:, alter colors, decrease the cost per weight, or avoid the cost of high-purity refinement. For example, 895:
other metals used: 19.32 g/cm for gold, 10.49 g/cm for silver and 8.96 g/cm for copper.
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regularly produces commemorative coins in this fineness, including the world's largest, at 100 kg.
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However, this system of calculation gives only the mass of pure gold contained in an alloy. The term
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system, described above for bullion, though jewelry generally tends to still use the karat system.
633: 334: 248: 1895:
Catalogue of the Byzantine Coins in the Dumbarton Oaks Collection and in the Whittemore Collection
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means that the alloy's mass consists of 75% of gold and 25% of other metals. The quantity of gold
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The millesimal fineness is usually rounded to a three figure number, particularly where used as a
1077: 612: 504: 321:. Historically the most widely used fineness for gold bullion coins, such as the oldest American 278: 2046: 1962: 1899: 1860: 1854: 774:, in parts fine per 24 parts whole. The karat system is a standard adopted by US federal law. 691: 304:: Formerly used by Venetian and Holy Roman Empire mints; still in use in Austria and Hungary. 2036: 2028: 1952: 1944: 1893: 1146: 1100:
of 18 karat gold (which is 75% gold) may be said to have a fine weight of 0.75 troy ounces.
724: 698: 529: 469:: The purest silver ever produced. This was achieved by the Royal Silver Company of Bolivia. 679:) a common standard for continental silver especially among the Dutch, Swedish, and Germans 1836: 1799: 1756: 1737: 1207: 963: 570: 349: 89: 1981:"15 U.S. Code Chapter 8 - FALSELY STAMPED GOLD OR SILVER OR GOODS MANUFACTURED THEREFROM" 1817: 1350: 2041: 2016: 1980: 1957: 1932: 1024: 978: 452:
with a fineness of 900 (one nine fine); this latter alloy is also often referred to as
428:: Legal minimum for gold in the US since the revision of the FTC Guides of August 2018. 169: 42: 31: 2001: 1500: 215: 2064: 1296: 1015: 1012: 942: 594: 496: 475: 285: 231: 187: 1660: 1636: 1545: 1521: 1472: 854:
The karat fractional system is increasingly being complemented or superseded by the
1612: 1276: 1128: 1051: 715: 711: 608: 500: 445: 2006: 585:), during the British raj and for some coins during the first Brazilian Republic. 95:
Various ways of expressing fineness have been used and two remain in common use:
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Turnbull, L. A.; Santamaria, L.; Martorell, T.; Rallo, J.; Hector, A. (2006).
1142: 1097: 616: 508: 330: 318: 237: 220: 165:, and the fineness may vary slightly from the traditional versions of purity. 53: 1291: 151: 2050: 2032: 1966: 1948: 1773: 1281: 1064:
of a libra. This is believed to be the origin of the value of the karat.
542: 162: 136: 92:
contains 92.5% silver and 7.5% of other metals, usually copper, by mass.
61: 57: 1714:"United States Code, 16 CFR 23.3 - Misrepresentation as to gold content" 17: 1311: 1046: 100: 69: 1352:
Bullion and foreign exchanges theoretically and practically considered
1331: 574:
The UK has used this alloy from the early 12th century. Equivalent to
1569: 771: 582: 144: 77: 73: 847:
fineness (that is, 99.2% purity) could have been described as being
945: 548:
935: Swiss standard for watchcases after 1887, to meet the British
1093: 993: 902: 708: 697:
750: An uncommon silver standard found in older German, Swiss and
436: 299: 214: 147: 65: 50: 1898:. Vol. 2: pt. 1. Washington, DC: Dumbarton Oaks. p. 8. 1859:. Vol. II: Coinage. Chicago: Fitzroy Dearborn. p. 100. 1120: 768: 344:: American Eagle denominations for 1837–1933; currently used in 140: 114: 85: 971:
meaning "fruit of the carob tree", also "weight of 5 grains", (
937:. First attested in English in the mid-15th century, the word 480:: ultra-fine silver used by the Royal Canadian Mint for their 1700:
The VNR OXFORD Dictionary for Scientific Writers and Editors
1199:{\displaystyle {\frac {(11+{\frac {10}{20}})}{12}}=95.833\%} 1116: 611:
and 1837–1964 U.S. silver coins. Also used in U.S. silver
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with a fineness of 999 (three nines fine), together with a
45:
object (coin, bar, jewelry, etc.) represents the weight of
135:
Millesimal fineness is a system of denoting the purity of
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therein, in proportion to the total weight which includes
1260:{\displaystyle {\frac {(11+{\frac {2}{20}})}{12}}=92.5\%} 660:
zolotnik. Imperial Russian coinage between 1797 and 1885.
1599:"Decoplata: The History of .720 Silver in World Coinage" 1210:
has a fineness of 11 ounces, 2 pennyweights, or exactly
682:
830: A common standard used in older Scandinavian silver
168:
Here are the most common millesimal finenesses used for
1419:"The Million Dollar Coin – a true milestone in minting" 1149:
has a fineness of 11 ounces, 10 pennyweights, or about
861:
Conversion between percentage of pure gold and karats:
581:
917: a standard used for the minting of Indian silver (
117:. Karats measure the parts per 24, so that 18 karat = 1740:
International Gem Society (IGS), Retrieved 01-16-2015
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The VNR Dictionary of Engineering Units and Measures
962:. These were borrowed into Medieval Europe from the 921:
which itself comes from the Greek word for the seed
84:
in the past, contains 90% silver and 10% copper, by
1076:the metal (which requires destroying it), or using 1818:An Etymological Dictionary of the English Language 1259: 1198: 325:denominations from 1795–1833. Currently used for 247:: The purest type of gold currently produced; the 514:980: common standard used in Mexico ca. 1930–1945 127:= 75% and 24 karat gold is considered 100% gold. 1489:U.S. Mint abandons 90 percent silver composition 236:: The purest gold ever produced. Refined by the 194:950: the most common purity for platinum jewelry 172:and the most common terms associated with them. 690:between 1965 and 1970, and commemorative issue 27:Weight of fine metal in a precious metal object 1731:Comprehensive Jewelry Precious Metals Overview 996:seed (literally "small horn") (diminutive of 694:between 1971 and 1978 (cores are 20.9% silver) 2017:"Seed size variability: From carob to carats" 2015:Turnbull, Lindsay A; et al. (Oct 2006). 1933:"Seed size variability: From carob to carats" 951: 8: 1546:"1 Rouble, Alexander II-III, Russian Empire" 1404:90 Golden Years, The story of the Perth Mint 1044:(Roman pound) of gold equal to a mass of 24 972: 966: 916: 736:"Karat" redirects here. For other uses, see 1003: 997: 987: 981: 957: 922: 820:is the mass of pure gold in the alloy, and 355:899—American Eagles briefly for 1834—1836. 2040: 1956: 1767: 1765: 1570:"Canadian Coin Melt Values - Coinflation" 1229: 1217: 1215: 1168: 1156: 1154: 1145:(12 troy ounces) of the resulting alloy. 632:fine "standard silver" as defined by the 855: 767:) is a fractional measure of purity for 1856:Coinage and History of the Roman Empire 1322: 1839:, Henry George Liddell, Robert Scott, 1802:, Henry George Liddell, Robert Scott, 1702:. Oxford University Press. p. 56. 950:, in turn derived either from Italian 874:95.83–99.95% = 23 k (acclaimed 95.83%) 871:91.66–95.83% = 22 k (acclaimed 91.66%) 868:75.00–79.16% = 18 k (acclaimed 75.00%) 865:58.33–62.50% = 14 k (acclaimed 58.33%) 707:600: Used in some examples of postwar 1688:. Van Nostrand Reinhold. p. 114. 1450:. Gold Rate for Today. Archived from 60:. Alloy metals are added to increase 7: 1473:"..:: Royal Silver Company ::." 877:99.95–100% = 24 k (acclaimed 99.95%) 811:is the karat rating of the material, 1330:London Bullion Market Association. 1119:was traditionally expressed as the 973: 1522:"1 Rouble, Paul I, Russian Empire" 1254: 1193: 829:is the total mass of the material. 25: 1425:from the original on 9 March 2015 2000: 1987:from the original on 2016-11-07. 1912:from the original on 6 June 2013 1873:from the original on 7 June 2013 1720:from the original on 2017-02-14. 1478:from the original on 2013-03-16. 1378:"The Perth Mint :: History" 1338:from the original on 2015-07-12. 348:mintage (e.g. French and Swiss " 333:, and the modern (1986—present) 1580:from the original on 2017-06-17 1406:. Gold Corporation. p. 58. 1384:from the original on 2011-05-14 849:23-karat, 3-grain, 1-quart gold 588:916: 88 zolotnik Russian silver 223:of four nines fine gold (999.9) 76:is added to the precious metal 1239: 1220: 1178: 1159: 499:bullion bars and most current 258:: Most popular. E.g. ordinary 1: 2005:The dictionary definition of 727:minted between 1942 and 1945. 644:U.S. silver coins (1795–1836) 273:, also occasionally known as 284:995: The minimum allowed in 1779:Online Etymology Dictionary 1111:Troy mass of silver content 1004: 982: 967: 923: 917: 911:) pod and seeds, origin of 578:in Spain (first law silver) 450:Walking Liberty half dollar 2107: 1107:and weighs 1.091 troy oz. 735: 723:350: Standard used for US 105: 29: 1892:Grierson, Philip (1968). 1050:, where each siliqua (or 998: 988: 331:South African Krugerrands 1815:Walter W. Skeat (1888), 1637:"10 Sen - Taishō, Japan" 714:, such as the 1957-1966 260:Canadian Gold Maple Leaf 30:Not to be confused with 1853:Vagi, David L. (1999). 1841:A Greek-English Lexicon 1804:A Greek-English Lexicon 1302:Silver as an investment 1123:of silver expressed in 946: 725:Jefferson "war nickels" 503:. Used in U.S. silver 2033:10.1098/rsbl.2006.0476 1949:10.1098/rsbl.2006.0476 1261: 1200: 1115:Fineness of silver in 958: 952: 927: 738:Karat (disambiguation) 484:and other silver coins 461: 224: 99:expressed in units of 1759:, Oxford Dictionaries 1417:Royal Canadian Mint. 1355:. E. Wilson. p.  1349:Seyd, Ernest (1868). 1287:Gold as an investment 1262: 1201: 906: 759:(UK spelling, symbol 747:(US spelling, symbol 550:Merchandise Marks Act 443:American Silver Eagle 440: 218: 1684:Melaragno, Michele. 1613:"10 Escudos, Angola" 1503:. Antiques in Oxford 1380:. Gold Corporation. 1214: 1153: 665:Latin Monetary Union 576:plata de primera ley 501:silver bullion coins 346:Latin Monetary Union 335:American Gold Eagles 1574:www.coinflation.com 1141:troy ounce) in one 634:Coinage Act of 1792 622:892.4: US coinage 613:commemorative coins 537:French 1st Standard 505:commemorative coins 249:Royal Canadian Mint 131:Millesimal fineness 97:millesimal fineness 1835:2012-10-08 at the 1798:2012-10-08 at the 1755:2010-10-24 at the 1736:2015-02-17 at the 1601:. 18 January 2022. 1501:"Silver standards" 1448:"Fineness of Gold" 1257: 1196: 1078:X-ray fluorescence 1068:Verifying fineness 956:or Medieval Latin 928: 692:Eisenhower dollars 462: 395:(second law gold). 393:oro de segunda ley 370:oro de primera ley 327:British Sovereigns 279:Chinese Gold Panda 225: 152:parts per thousand 64:and durability of 1905:978-0-88402-024-0 1866:978-1-57958-316-3 1772:Harper, Douglas. 1661:"1 Peso, Uruguay" 1454:on August 7, 2013 1246: 1237: 1185: 1176: 1105:One Oz. Fine Gold 909:Ceratonia siliqua 511:starting in 2019. 482:Silver Maple Leaf 372:(first law gold). 16:(Redirected from 2098: 2091:Jewellery making 2076:Gold investments 2057: 2044: 2004: 1989: 1988: 1977: 1971: 1970: 1960: 1928: 1922: 1921: 1919: 1917: 1889: 1883: 1882: 1880: 1878: 1850: 1844: 1827: 1821: 1813: 1807: 1790: 1784: 1783: 1769: 1760: 1747: 1741: 1728: 1722: 1721: 1710: 1704: 1703: 1696: 1690: 1689: 1681: 1675: 1674: 1672: 1671: 1657: 1651: 1650: 1648: 1647: 1633: 1627: 1626: 1624: 1623: 1609: 1603: 1602: 1595: 1589: 1588: 1586: 1585: 1566: 1560: 1559: 1557: 1556: 1542: 1536: 1535: 1533: 1532: 1518: 1512: 1511: 1509: 1508: 1497: 1491: 1486: 1480: 1479: 1469: 1463: 1462: 1460: 1459: 1444: 1438: 1437: 1432: 1430: 1414: 1408: 1407: 1399: 1393: 1392: 1390: 1389: 1374: 1368: 1367: 1365: 1363: 1346: 1340: 1339: 1327: 1266: 1264: 1263: 1258: 1247: 1242: 1238: 1230: 1218: 1206:silver, whereas 1205: 1203: 1202: 1197: 1186: 1181: 1177: 1169: 1157: 1147:Britannia silver 1140: 1139: 1135: 1063: 1062: 1058: 1037: 1036: 1032: 1022:a new gold coin 1011:In 309 AD, 1007: 1001: 1000: 991: 990: 985: 976: 975: 970: 961: 955: 949: 933:is a variant of 926: 920: 846: 845: 841: 699:Austro-Hungarian 678: 677: 673: 659: 658: 654: 631: 630: 626: 567: 566: 562: 530:Britannia silver 526: 525: 521: 493:three nines fine 275:three nines fine 264:American Buffalo 126: 125: 121: 21: 2106: 2105: 2101: 2100: 2099: 2097: 2096: 2095: 2086:Units of purity 2081:Precious metals 2061: 2060: 2021:Biology Letters 2014: 1997: 1992: 1979: 1978: 1974: 1937:Biology Letters 1930: 1929: 1925: 1915: 1913: 1906: 1891: 1890: 1886: 1876: 1874: 1867: 1852: 1851: 1847: 1837:Wayback Machine 1828: 1824: 1814: 1810: 1800:Wayback Machine 1791: 1787: 1771: 1770: 1763: 1757:Wayback Machine 1748: 1744: 1738:Wayback Machine 1729: 1725: 1712: 1711: 1707: 1698: 1697: 1693: 1683: 1682: 1678: 1669: 1667: 1659: 1658: 1654: 1645: 1643: 1635: 1634: 1630: 1621: 1619: 1611: 1610: 1606: 1597: 1596: 1592: 1583: 1581: 1568: 1567: 1563: 1554: 1552: 1544: 1543: 1539: 1530: 1528: 1520: 1519: 1515: 1506: 1504: 1499: 1498: 1494: 1487: 1483: 1471: 1470: 1466: 1457: 1455: 1446: 1445: 1441: 1428: 1426: 1416: 1415: 1411: 1402:Thomas, Athol. 1401: 1400: 1396: 1387: 1385: 1376: 1375: 1371: 1361: 1359: 1348: 1347: 1343: 1329: 1328: 1324: 1320: 1273: 1219: 1212: 1211: 1208:sterling silver 1158: 1151: 1150: 1137: 1133: 1132: 1113: 1090: 1070: 1060: 1056: 1055: 1034: 1030: 1029: 901: 884: 843: 839: 838: 828: 819: 799: 792: 780: 741: 734: 675: 671: 670: 656: 652: 651: 628: 624: 623: 571:Sterling silver 564: 560: 559: 523: 519: 518: 467:five nines fine 435: 256:four nines fine 245:five nines fine 213: 178: 170:precious metals 133: 123: 119: 118: 101:parts per 1,000 90:Sterling silver 35: 28: 23: 22: 15: 12: 11: 5: 2104: 2102: 2094: 2093: 2088: 2083: 2078: 2073: 2063: 2062: 2059: 2058: 2027:(3): 397–400. 2012: 1996: 1995:External links 1993: 1991: 1990: 1972: 1943:(3): 397–400. 1923: 1904: 1884: 1865: 1845: 1822: 1808: 1785: 1761: 1742: 1723: 1705: 1691: 1676: 1665:en.numista.com 1652: 1641:en.numista.com 1628: 1617:en.numista.com 1604: 1590: 1561: 1550:en.numista.com 1537: 1526:en.numista.com 1513: 1492: 1481: 1464: 1439: 1409: 1394: 1369: 1341: 1321: 1319: 1316: 1315: 1314: 1309: 1304: 1299: 1294: 1289: 1284: 1279: 1272: 1269: 1256: 1253: 1250: 1245: 1241: 1236: 1233: 1228: 1225: 1222: 1195: 1192: 1189: 1184: 1180: 1175: 1172: 1167: 1164: 1161: 1112: 1109: 1089: 1086: 1069: 1066: 900: 897: 883: 880: 879: 878: 875: 872: 869: 866: 834:and so forth. 831: 830: 826: 821: 817: 812: 802: 801: 797: 790: 779: 776: 733: 730: 729: 728: 721: 718: 705: 702: 695: 683: 680: 667: 661: 648: 645: 620: 589: 586: 579: 556: 553: 546: 545:Russian silver 539: 533: 515: 512: 485: 470: 434: 431: 430: 429: 423: 416: 409: 402: 396: 385: 379: 373: 362: 356: 353: 338: 311: 305: 295: 293:two nines fine 289: 282: 267: 252: 241: 212: 209: 208: 207: 204: 201: 195: 192: 182: 177: 174: 132: 129: 113:used only for 43:precious metal 32:Fineness ratio 26: 24: 14: 13: 10: 9: 6: 4: 3: 2: 2103: 2092: 2089: 2087: 2084: 2082: 2079: 2077: 2074: 2072: 2069: 2068: 2066: 2056: 2052: 2048: 2043: 2038: 2034: 2030: 2026: 2022: 2018: 2013: 2011:at Wiktionary 2010: 2009: 2003: 1999: 1998: 1994: 1986: 1982: 1976: 1973: 1968: 1964: 1959: 1954: 1950: 1946: 1942: 1938: 1934: 1927: 1924: 1911: 1907: 1901: 1897: 1896: 1888: 1885: 1872: 1868: 1862: 1858: 1857: 1849: 1846: 1842: 1838: 1834: 1831: 1826: 1823: 1820: 1819: 1812: 1809: 1805: 1801: 1797: 1794: 1789: 1786: 1781: 1780: 1775: 1768: 1766: 1762: 1758: 1754: 1751: 1746: 1743: 1739: 1735: 1732: 1727: 1724: 1719: 1715: 1709: 1706: 1701: 1695: 1692: 1687: 1680: 1677: 1666: 1662: 1656: 1653: 1642: 1638: 1632: 1629: 1618: 1614: 1608: 1605: 1600: 1594: 1591: 1579: 1575: 1571: 1565: 1562: 1551: 1547: 1541: 1538: 1527: 1523: 1517: 1514: 1502: 1496: 1493: 1490: 1485: 1482: 1477: 1474: 1468: 1465: 1453: 1449: 1443: 1440: 1436: 1424: 1420: 1413: 1410: 1405: 1398: 1395: 1383: 1379: 1373: 1370: 1358: 1354: 1353: 1345: 1342: 1337: 1333: 1332:"Definitions" 1326: 1323: 1317: 1313: 1310: 1308: 1305: 1303: 1300: 1298: 1297:Platinum coin 1295: 1293: 1290: 1288: 1285: 1283: 1280: 1278: 1275: 1274: 1270: 1268: 1251: 1248: 1243: 1234: 1231: 1226: 1223: 1209: 1190: 1187: 1182: 1173: 1170: 1165: 1162: 1148: 1144: 1130: 1126: 1122: 1118: 1110: 1108: 1106: 1101: 1099: 1095: 1087: 1085: 1081: 1079: 1075: 1067: 1065: 1053: 1049: 1048: 1043: 1042: 1027: 1026: 1021: 1017: 1016:Constantine I 1014: 1013:Roman Emperor 1009: 1006: 995: 984: 980: 969: 965: 960: 954: 948: 944: 943:Middle French 940: 936: 932: 925: 919: 914: 910: 905: 898: 896: 893: 889: 888:18-karat gold 881: 876: 873: 870: 867: 864: 863: 862: 859: 857: 852: 850: 835: 825: 822: 816: 813: 810: 807: 806: 805: 796: 789: 786:= 24 × ( 785: 782: 781: 777: 775: 773: 770: 766: 762: 758: 754: 750: 746: 739: 731: 726: 722: 719: 717: 713: 710: 706: 703: 700: 696: 693: 689: 684: 681: 668: 666: 662: 649: 646: 643: 639: 635: 621: 618: 614: 610: 606: 602: 598: 596: 590: 587: 584: 580: 577: 573: 572: 557: 554: 551: 547: 544: 540: 538: 534: 532: 531: 516: 513: 510: 506: 502: 498: 497:Good Delivery 494: 490: 486: 483: 479: 477: 471: 468: 464: 463: 459: 455: 451: 447: 444: 439: 432: 427: 424: 421: 417: 414: 410: 407: 403: 401: 397: 394: 390: 386: 384: 380: 378: 374: 371: 367: 363: 361: 357: 354: 352:" 20 francs). 351: 350:Napoleon coin 347: 343: 342:one nine fine 339: 336: 332: 328: 324: 320: 316: 312: 310: 306: 303: 301: 296: 294: 290: 287: 286:Good Delivery 283: 280: 276: 272: 268: 265: 261: 257: 253: 250: 246: 242: 239: 235: 233: 227: 226: 222: 217: 210: 205: 202: 200: 199:one nine fine 196: 193: 191: 189: 183: 180: 179: 175: 173: 171: 166: 164: 159: 156: 153: 149: 146: 142: 138: 130: 128: 116: 112: 108: 107: 102: 98: 93: 91: 87: 83: 79: 75: 71: 67: 63: 59: 55: 52: 48: 44: 40: 33: 19: 2054: 2024: 2020: 2007: 1975: 1940: 1936: 1926: 1914:. Retrieved 1894: 1887: 1875:. Retrieved 1855: 1848: 1843:, on Perseus 1840: 1825: 1816: 1811: 1806:, on Perseus 1803: 1788: 1777: 1745: 1726: 1708: 1699: 1694: 1685: 1679: 1668:. Retrieved 1664: 1655: 1644:. Retrieved 1640: 1631: 1620:. Retrieved 1616: 1607: 1593: 1582:. Retrieved 1573: 1564: 1553:. Retrieved 1549: 1540: 1529:. Retrieved 1525: 1516: 1505:. Retrieved 1495: 1484: 1467: 1456:. Retrieved 1452:the original 1442: 1434: 1427:. Retrieved 1412: 1403: 1397: 1386:. Retrieved 1372: 1360:. 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Index

24 karat
Fineness ratio
precious metal
alloying
base metals
impurities
hardness
coins
jewelry
copper
silver
silver coins
mass
Sterling silver
parts per 1,000
karats
gold
platinum
gold
silver
alloys
parts per thousand
hallmark
precious metals
nines

troy ounce
nines
Perth Mint
Royal Canadian Mint

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