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Native copper sulphide, called also copper glance, and vitreous copper; a mineral of a black color and metallic luster.
(der) Chalkosin, (der)Kupferglanz Etymology: gr. chalkos - Copper, Bronze Chemical formula: Cu2S Crystal system: monoclinic - prismatic Mohs scale 2,5 - 3 Density: 5,8 Environment: Secondary mineral near or in oxidized copper sulfide ore deposits. More specific details can be found in the mineralogy database
A sulphide mineral of copper common in the zone of secondary enrichment.
a heavy gray mineral that is an ore of copper
Cu S, an ore of copper.
Chalcocite is a copper-sulfide ore mineral. Chalcocite has a high copper content, 67% by atomic ratio, and can be separated from sulfur easily.
Chalcocite, copper(I) sulfide (Cu2S), is an important copper ore mineral. It is opaque, being colored dark-gray to black with a metallic luster. It has a hardness of 2½ - 3.
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