Clinozoisite: Properties and Occurrences
Clinozoisite is a complex calcium aluminum sorosilicate mineral with formula: Ca2Al3(Si2O7)(SiO4)O(OH). It is colorless, yellow, greenish, or pale rose-red mineral similar to Epidote, but containing…
Geographic Minerals
Clinoptilolite
Clinoptilolite is a natural zeolite comprising a microporous arrangement of silica and alumina tetrahedra. It has the complex formula: (Na,K,Ca)2-3Al3(Al,Si)2Si13O36·12H2O. The name is derived from…
Clinohumite: Properties and Occurrences
Clinohumite is an uncommon member of the humite group, a magnesium silicate according to the chemical formula (Mg, Fe)9(SiO4)4(F, OH)2. It was first discovered in…
Clinohedrite
Clinohedrite is a rare silicate mineral. Its chemical composition is a hydrous calcium-zinc silicate; CaZn(SiO4)·H2O. Under shortwave ultraviolet light it fluoresces a rich orange color.…
Clinoclase: Properties and Occurrences
Clinoclase is a hydrous copper arsenate mineral, Cu3AsO4(OH)3. It is a rare secondary copper mineral. It was first known from the Wheal Gorland Mine (now…
Cleusonite: Properties and Occurrences
Cleusonite is a member of the crichtonite group of minerals with a chemical formula of (Pb, Sr)(U4+, U6+)(Fe2+, Zn)(Ti, Fe2+, Fe3+)18(O, OH)38. It was found…
Clearcreekite
Clearcreekite is polymorphous with peterbaylissite. The chemical formula of clearcreekite is Hg1+3CO3(OH)∙2H2O. It is a monoclinic-prismatic pale greenish yellow mineral containing carbon, hydrogen, mercury, and…
Clausthalite
Clausthalite is a lead selenide mineral, PbSe. It forms a solid solution series with galena PbS. is a member of the Galena Group of minerals.…
Claudetite
Claudetite is an arsenic oxide mineral with chemical formula As2O3. It is a mineral consisting of a native arsenic trioxide As2O3 crystallizing in the monoclinic…
Clarkeite: Properties and Occurrences
Clarkeite is a uranium oxide mineral of composition (Na, Ca, Pb)2(UO2)2(O, OH)3 or (Na, Ca, Pb)(UO2)O(OH)·0-1H2O. It is a rare dark brown radioactive mineral whose…
Cinnabar: Properties and Occurrences
Cinnabar is a bright red mineral consisting of mercury sulphide, sometimes used as a pigment. It refers to the common bright scarlet to a brick-red…
Chvaleticeite
Chvaleticeite is a monoclinic hexahydrite manganese magnesium sulfate mineral and soft monoclinic mineral with formula: (Mn2+, Mg)[SO4]·6(H2O). It occurs in the oxidized zone of manganese…
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