Complete mineralogical data for CRYPTOPHYLLITE. Chemical Formula: K2Ca[Si4O10](H2O)3·2H2O. Crystal System: Monoclinic. Learn about its geologic occurrence, habit, and identification.

Complete mineralogical data for CONICHALCITE. Chemical Formula: CaCu(AsO4)(OH). Crystal System: Orthorhombic. Learn about its geologic occurrence, habit, and identification.

Complete mineralogical data for CONNELLITE. Chemical Formula: Cu36Cl8(OH)62(SO4)·6H2O. Crystal System: Hexagonal. Learn about its geologic occurrence, habit, and identification.

Complete mineralogical data for COOKEITE. Chemical Formula: (Al,Li)3Al2[(Si,Al)4O10](OH)8. Crystal System: Monoclinic. Learn about its geologic occurrence, habit, and identification.

Complete mineralogical data for COOMBSITE. Chemical Formula: KMn2+13[(Si,Al)18O42](OH)14. Crystal System: Hexagonal-Trigonal. Learn about its geologic occurrence, habit, and identification.

Complete mineralogical data for COOPERITE. Chemical Formula: PtS. Crystal System: Tetragonal. Learn about its geologic occurrence, habit, and identification.

Complete mineralogical data for COPARSITE. Chemical Formula: Cu4(AsO4)O2Cl. Crystal System: Orthorhombic. Learn about its geologic occurrence, habit, and identification.

Complete mineralogical data for COPIAPITE. Chemical Formula: Fe2+Fe3+4(SO4)6(OH)2(H2O)10·10H2O. Crystal System: Triclinic. Learn about its geologic occurrence, habit, and identification.

Complete mineralogical data for COPPER. Chemical Formula: Cu. Crystal System: Isometric. Learn about its geologic occurrence, habit, and identification.

Complete mineralogical data for COQUANDITE. Chemical Formula: Sb3+6O8(SO4)·H2O. Crystal System: Triclinic. Learn about its geologic occurrence, habit, and identification.