Krennerite: Properties and Occurrences
Krennerite is an orthorhombic gold telluride mineral which can contain variable amounts of silver in the structure. It is a mineral consisting of a gold…
Geographic Minerals
Kremersite: Properties and Occurrences
Kremersite is a rare mineral which is a hydrated multiple chloride of iron, ammonium, and potassium with the formula: (NH4)2Fe3+Cl5H2O. It is an orthorhombic-dipyramidal mineral…
Kratochvilite: Properties and Occurrences
Kratochvilite is a rare organic mineral formed by combustion of coal or pyritic black shale deposits. It is a rare organic mineral, an orthorhombic hydrocarbon…
Kovdorskite: Properties and Occurrences
Kovdorskite, Formula: Mg2PO4(OH)·3H2O, is a rare, hydrated, magnesium phosphate mineral. It is a monoclinic-prismatic mineral containing carbon, hydrogen, magnesium, oxygen, and phosphorus. It was first…
Köttigite: Properties and Occurrences
Köttigite is a rare hydrated zinc arsenate which was discovered in 1849 and named by James Dwight Dana in 1850 in honor of Otto Friedrich…
Kostovite: Properties and Occurrence
Kostovite is a rare orthorhombic-pyramidal gray-white telluride mineral containing copper and gold with chemical formula AuCuTe4. It was discovered by Bulgarian mineralogist Georgi Terziev (1935–1972),…
Kosmochlor: Properties and Occurrence
Kosmochlor is a rare chromium sodium clinopyroxene with the chemical formula NaCr3+Si2O6. It is a monoclinic-prismatic emerald green mineral containing chromium, oxygen, silicon, and sodium.…
Kornerupine: Properties and Occurrences
Kornerupine also known as Prismatine, is a rare boro-silicate mineral with the formula (Mg, Fe2+)4 (Al, Fe3+)6 (SiO4, BO4)5 (O, OH)2. The color can vary from brown, green…
Kolbeckite: Properties and Occurrences
Kolbeckite (scandium phosphate dihydrate) is a mineral with formula: ScPO4·2H2O. It is a mineral consisting of a hydrous silicate and phosphate of beryllium, aluminum, and…
Kogarkoite: Properties and Occurrences
Kogarkoite is a sodium sulfate fluoride mineral with formula Na3(SO4)F. It is a pale blue monoclinic mineral. The crystal is monoclinic and is a type…
Kochite: Properties and Occurrences
Kochite is a rare silicate mineral with a chemical formula of (Na, Ca)3Ca2(Mn, Ca)ZrTi [(F, O)4(Si2O7)2 or double that. It is a triclinic-pinacoidal mineral containing…
Kobellite: Properties and Occurrences
Kobellite [Pb22Cu4(Bi, Sb)30S69] is a gray, fibrous, metallic mineral. It is also a sulfide mineral consisting of antimony, bismuth, and lead. The mineral can be…
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