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chalcostibite

[kal-kuh-stib-ahyt]
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noun
  1. a mineral, antimony copper sulfide, CuSbS2, occurring in lead-gray crystals.

Origin of chalcostibite

First recorded in 1865–70; chalco- + stib(ium) + -ite1
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018