Definition of calcite noun from the Oxford Advanced Learner's Dictionary

 

calcite

 noun
noun
BrE BrE//ˈkælsaɪt//
 
; NAmE NAmE//ˈkælsaɪt//
 
[uncountable](chemistry)
 
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a white or clear mineral consisting of calcium carbonate. It forms a major part of rocks such as limestone, marble and chalk. Word Origin mid 19th cent.: coined in German from Latin calx, calc- ‘lime’.
See the Oxford Advanced American Dictionary entry: calcite