Keyite: Properties and Occurrences
Keyite is a mineral with the chemical formula Cu32+Zn4Cd2(AsO4)6·2H2O. It is a monoclinic-prismatic azure mineral containing arsenic, cadmium, calcium, copper, hydrogen, manganese, oxygen, and zinc.…
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Kesterite: Properties and Occurrences
Kesterite is a sulfide mineral with a formula Cu2(Zn, Fe)SnS4. In its lattice structure, zinc and iron atoms share the same lattice sites. It is…
Kernite: Properties and Occurrences
Kernite, also known as rasorite is a hydrated sodium borate hydroxide mineral with formula Na2B4O6(OH)2·3H2O. It is a colorless to white mineral crystallizing in the…
Kermesite: Properties and Occurrences
Kermesite or antimony oxysulfide is also known as red antimony (Sb2S2O). It is an unusual sulfide mineral. The mineral’s color ranges from cherry red to…
Keilite: Properties and Occurrences
Keilite is an iron-magnesium sulfide mineral [chemical formula- (Fe, Mg)S)] that is found in enstatite chondrites. It is an isometric-hexoctahedral gray mineral containing calcium, chromium,…
Kegelite: Properties and Occurrences
Kegelite is a complex silicate mineral with formula Pb8Al4Si8O20(SO4)2(CO3)4(OH)8. It is a monoclinic mineral containing aluminum, carbon, hydrogen, lead, oxygen, silicon, and sulfur. It was…
Kassite: Properties and Occurrences
Kassite is a rare mineral whose chemical formula is CaTi2O4(OH)2. It was first described in 1965 in the Afrikanda pyroxenite massif, a formation on Russia’s…
Karlite: Properties and Occurrences
Karlite is a silky white to light green orthorhombic borate mineral, not to be confused with tremolite-actinolite. It has a general formula of Mg7(BO3)3(OH)4Cl. It…
Kaolinite: Properties and Occurrences
Kaolinite is a clay mineral, part of the group of industrial minerals, with the chemical composition Al2Si2O5(OH)4. It is a layered silicate clay mineral which…
Kanoite: Properties and Occurrences
Kanoite is a light pinkish brown silicate mineral that is found in metamorphic rocks. It is a silicate mineral that is found in metamorphic rocks.…
Kankite: Properties and Occurrences
Kankite is a mineral with the chemical formula Fe3+AsO4·3.5(H2O). It is a monoclinic yellow-green mineral containing arsenic, hydrogen, iron, and oxygen. It contains the elements…
Kampfite: Properties and Occurrences
Kampfite is a rare barium silicate–carbonate–halide mineral with formula: Ba12(Si11Al5)O31(CO3)8Cl5. Discovered in 1964 and described in 2001, it is named after Anthony R. Kampf. The…
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