The term covellite refers to a native copper sulphide, (CuS), usually occurring in an indigo-blue colour, hence called indigo-copper. It can also be defined as a shiny indigo-blue sulfide mineral that is an ore of copper.
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what is the definition of covellite
a mineral, copper sulfide, CuS, indigo in color and usually occurring as a massive coating on other copper minerals.
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