Greenockite definitions

grē'nə-kīt'
A yellow to brown or red mineral, CdS, the only ore of cadmium.
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A soft, yellowish, hexagonal mineral, CdS, an ore of cadmium; cadmium sulfide.
noun
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(mineralogy) A rare cadmium mineral that consists of cadmium sulfide in crystalline form.
noun
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Origin of greenockite

After Charles Murray Cathcart, Second Earl Greenock (1783–1859), British soldier