Chalcolite
torbernite.
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- Chairmen
the presiding officer of a meeting, committee, board, etc. the administrative head of a department in a high school, college, or university. someone employed to carry or wheel a person in a chair. to act as or be chairman of (a meeting, committee, etc.). noun (pl) -men Also called chairperson, (fem) chairwoman. a person who […]
- Chairmanship
the office or rank of chairman.
- Chalcophile
(of a chemical element in the earth) having an affinity for sulfur. a chalcophile element.
- Chalcopyrite
a very common mineral, copper iron sulfide, CuFeS 2 , occurring in brass-yellow crystals or masses: the most important ore of copper; copper pyrites. noun a widely distributed yellow mineral consisting of a sulphide of copper and iron in tetragonal crystalline form: the principal ore of copper. Formula: CuFeS2 Also called copper pyrites chalcopyrite (kāl’kə-pī’rīt’) […]
- Chalcosis
chalcosis chal·co·sis (kāl-kō’sĭs) n. Chronic copper poisoning. A deposit of fine particles of copper in the lungs or other tissues.