Tenorite

Tenorite is a copper oxide mineral with the simple formula CuO. ==Occurrence== Tenorite occurs in the weathered or oxidized zone associated with deeper primary copper sulfide orebodies. Tenorite commonly occurs with chrysocolla and the copper carbonates, azurite and malachite. The dull grey-black color of tenorite contrasts sharply with the often ...
Found on http://en.wikipedia.org/wiki/Tenorite

tenorite

copper oxide mineral (CuO) found as gray-to-black metallic crystals as a sublimation product on lavas. Melaconite, the massive variety, is common as ...
Found on http://www.britannica.com/eb/a-z/t/25

Tenorite

Copper(II) oxide
Found on http://www.translationdirectory.com/glossaries/glossary075.htm
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