Geographic Minerals

Cattierite

Cattierite

Cattierite (CoS2) is a cobalt sulfide mineral found in the Democratic Republic of Congo. It is a mineral consisting of cobalt sulfide and belonging to the pyrite group. It was discovered together with the nickel sulfide vaesite by Johannes F. Vaes, a Belgian mineralogist and named after Felicien .....

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Cassiterite: Properties and Occurrences

Cassiterite: Properties and Occurrences

Cassiterite is a tin oxide mineral, SnO2. It is a reddish, brownish, or yellowish mineral consisting of tin dioxide. It is the main ore of tin. It is generally opaque, but it is translucent in thin crystals. Its luster and multiple crystal faces produce a desirable gem. It is a black mineral is a.....

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Caryopilite

Caryopilite

Caryopilite (synonymous with ectropite and ektropite) is a brown-colored mineral with formula (Mn2+, Mg)3Si2O5(OH)4. It is tiny brown-red spherules of caryopilite in clusters to <1mm set on light pink crystalline Rhodochrosite. It is a monoclinic mineral containing arsenic, chlorine, hydrogen,.....

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Carrollite: Properties and Occurrences

Carrollite: Properties and Occurrences

Carrollite, CuCo2S4, is a sulfide of copper and cobalt, often with the substantial substitution of nickel for the metal ions, and a member of the linnaeite group. It is named after the type locality in Carroll County, Maryland, US, at the Patapsco mine, Sykesville. Carrollite occurs in hydrotherm.....

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Carpholite

Carpholite

Carpholite is a manganese silicate mineral with formula Mn2+Al2Si2O6(OH)4. It occurs as yellow clusters of slender prisms or needles. It crystallizes in the orthorhombic system. It was first described in 1817 for an occurrence in Horní Slavkov (Schlaggenwald), Karlovy Vary Region, Bohemia. The n.....

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Carpathite

Carpathite

Carpathite (also known as pendletonite and karpatite) is a very rare hydrocarbon mineral. It is the mineral form of the polycyclic aromatic hydrocarbon coronene with the formula: C24H12. It was first described in 1955 as an occurrence in Transcarpathian Oblast, Ukraine. It was named for the Carp.....

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Carobbiite

Carobbiite

Carobbiite, chemical formula KF (potassium fluoride), is a rare, soft (Mohs 2 – 2.5), colorless cubic mineral. It consists of Potassium fluoride, a rare, soft, colorless cubic mineral. It is found at Monte Somma, Somma-Vesuvius Complex, Province of Naples, Campania, Italy. It was discovered.....

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Carnotite: Properties and Ocurrences

Carnotite: Properties and Ocurrences

Carnotite is a potassium uranium vanadate radioactive mineral with chemical formula K2(UO2)2(VO4)2·3H2O. The water content can vary and small amounts of calcium, barium, magnesium, iron, and sodium are often present. It is a relatively uncommon mineral, yet common enough to be an important ore o.....

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Carnallite: Properties and Occurrences

Carnallite: Properties and Occurrences

Carnallite (also carnalite) is an evaporite mineral, a hydrated potassium magnesium chloride with formula KMgCl3·6(H2O). It was first described in 1856 from its type location of Stassfurt Deposit, Saxony-Anhalt, Germany. It was named for the Prussian mining engineer Rudolf von Carnall (1804–18.....

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Carminite: Properties and Occurrences

Carminite: Properties and Occurrences

Carminite (Formula- PbFe3+2(AsO4)2(OH)2) is an anhydrous arsenate mineral containing hydroxyl. It is a rare secondary mineral that is structurally related to palermoite (Li2SrAl4(PO4)4(OH)4). Sewardite (CaFe3+2(AsO4)2(OH)2) is an analog of carminite, with calcium in sewardite in place of the lead.....

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Carlsbergite: Properties and Occurrences

Carlsbergite: Properties and Occurrences

Carlsbergite is a nitride mineral that has the chemical formula CrN, or chromium nitride. It is named after the Carlsberg Foundation which backed the recovery of the Agpalilik fragment of the Cape York meteorite in which the mineral was first described. It occurs in meteorites along the grain bou.....

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Carlosruizite: Properties and Occurrences

Carlosruizite: Properties and Occurrences

Carlosruizite is a sulfate or selenate – iodate mineral with chemical formula: K6(Na, K)4 Na6Mg10 (SeO4)12 (IO3)12·12H2O. It is found in samples of iquiqueite leached from caliche amarillo (yellow nitrate ore). It was first discovered in 1994 in the locality of Zapiga, Tarapacá Region of C.....

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