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Enargite

 - 2 dictionary results

en⋅ar⋅gite

  [en-ahr-jahyt, en-er-jahyt]
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–noun
a mineral, copper arsenic and sulfide, Cu3AsS4, occurring in the form of black orthorhombic crystals having perfect cleavage: an important source of copper.
Origin:
1850–55; < Gk enarg(s) brilliant (en- en- 2 + -argēs, akin to argós bright, árgyros silver) + -ite 1
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Based on the Random House Dictionary, © Random House, Inc. 2009.
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Encyclopedia

enargite

sulfosalt mineral, copper arsenic sulfide (Cu3AsS4), that is occasionally an important ore of copper. It occurs as heavy, metallic-gray crystals and masses in veins and replacement deposits. Economically valuable deposits have been found in the Balkans; at several places in Peru; Chuquicamata, Chile; and Butte, Mont. It forms orthorhombic crystals. For detailed physical properties, see sulfosalt (table)

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Encyclopedia Britannica, 2008. Encyclopedia Britannica Online.
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