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xanthoconite
xanthoconite n.
Brit. 
/zanˈθɒkənʌɪt/
, /zanˈθɒkənʌɪt/U.S. /zænˈθɑkəˌnaɪt/
Mineralogy = xanthocone n./zænˈθɑkəˌnaɪt/ΘΚΠ
the world > the earth > minerals > types of mineral > sulphides and related minerals > sulpho-salts > [noun] > silver arsenic sulphide
ruby silver1786
xanthocone1846
xanthoconite1868
pearceite1896
1868 J. D. Dana Syst. Mineral. (ed. 5) 108 Xanthoconite... Color dull-red to clove-brown; crystals orange-yellow on the edges by transmitted light.
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