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Calcite yellow
Calcite, willemite fluorescent (orange and green) and franklinite
Cancrinite
Carnotite
Catapleiite
Celestite
Celestite cleavage
Celestite fibrous
Cerussite
Cerussite crystallized
Cerussite on galena
Chalcocite
Chalcocite in dolomite
Chalcopyrite
Chalcopyrite and pyrrhotite
Chiastolite (andalusite)
Chlorite
Chlorite altered
Chloritoid
Chondrodite