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单词 grey copper ore
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grey copper ore
grey copper n. Mining (more fully grey copper ore) a grey sulphide ore of copper; (in later use) spec. = tetrahedrite n.
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the world > the earth > minerals > ore > [noun] > metal ore > copper ore > types of
red copper1507
misy1543
grey copper1590
yellow ore1630
grey orea1728
pitch ore1776
red copper ore1776
fahlerz1796
tile-ore1823
cuprite1850
lettsomite1850
velvet copper-ore1850
yellows1851
meneghinite1852
peacock copper1858
peacock ore1858
horseflesh ore1868
plush-copper1881
the world > the earth > minerals > types of mineral > sulphides and related minerals > sulpho-salts > [noun] > tetrahedrite
grey copper1590
fahlerz1796
panabase1839
tennantite1839
fieldite1856
freibergite1856
tetrahedrite1868
panabasite1876
malinowskite1878
frigidite1887
schwatzite1887
1421 in N. S. B. Gras Early Eng. Customs Syst. (1918) 502 (MED) De Ertmer Swart pro vi di. barellis cupri grey pr. £iiii x s.]
1590 J. Hester tr. J. Du Chesne Sclopotarie i. 11 Likewise the spirite of Arsnicke, Calaminae or Tuthiae, being mingled with gray or yellowish Copper, dooth not at the first melting vanish away.
1730 J. Andree tr. G. H. Behrens Nat. Hist. Hartz-Forest vi. ii. 106 The following minerals are found there, viz...white and green vitriol, grey-Copper Ore, [etc.].
1832 W. Macgillivray Trav. & Researches A. von Humboldt xxvi. 396 Most of it [sc. Mexican silver] is obtained from sulphuretted silver, arsenical gray-copper..and red silver-ore.
1882 Proc. Amer. Philos. Soc. 1880–81 19 473 Nests of gray copper and Alaskaite in a gangue of quartz and barite.
1921 Daily Colonist (Victoria, Brit. Columbia) 29 Mar. 17/6 The Bellevue mine..has struck fine looking ore at 186 feet in from the mouth of the tunnel, showing galena and grey copper.
2008 G. Levitan Gold Deposits CIS iv. 113 The quartz-stibnite association contains also gray copper ore.
extracted from greygrayadj.n.
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