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chalcotrichite

American  
[kal-kuh-trik-ahyt] / ˌkæl kəˈtrɪk aɪt /

noun

Mineralogy.
  1. a fibrous variety of cuprite.


Etymology

Origin of chalcotrichite

1865–70; < German Chalkotrichit; see chalco-, trich-, -ite 1