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Cattierite

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Cattierite
Cattierite-654100.jpg
Cattierite crystals in dolomite matrix
General
CategorySulfide mineral
Formula
(repeating unit)
CoS2
IMA symbolCat[1]
Strunz classification2.EB.05a
Crystal systemCubic
Crystal classDiploidal (m3)
H-M symbol: (2/m 3)
Space groupPa3
Unit cella = 5.52 Å; Z = 4
Identification
ColorPink to grayish white
Crystal habitCubic crystals and granular intergrowths
CleavagePerfect on {001}
Mohs scale hardness4
LusterMetallic
DiaphaneityOpaque
Specific gravity4.82
Optical propertiesIsotropic
References[2][3][4][5]

Cattierite (CoS2) is a cobalt sulfide mineral found in the Democratic Republic of Congo. It was discovered together with the nickel sulfide vaesite by Johannes F. Vaes, a Belgian mineralologist and named after Felicien Cattier, who was chairman of the board of the Union Minière du Haut-Katanga.[6]

The mineral belongs to the pyrite group, in which all minerals share the same building principle. The metal in the oxidation state +2 forms a sodium chloride structure together with the anion S22−. This formalism recognizes that the sulfur atoms in pyrite occur in pairs with clear S-S bonds.

It occurs with pyrite, chalcopyrite and members of the linnaeitepolydymite group in ore deposits in carbonate rocks. In addition to the type locality in the Katanga district it is reported from Gansberg, Black Forest, Germany; near Filipstad, Varmland, Sweden; Bald Knob, near Sparta, Alleghany County, North Carolina and in the Fletcher mine of Reynolds County, Missouri.[3]

Discover more about Cattierite related topics

Cobalt

Cobalt

Cobalt is a chemical element with the symbol Co and atomic number 27. As with nickel, cobalt is found in the Earth's crust only in a chemically combined form, save for small deposits found in alloys of natural meteoric iron. The free element, produced by reductive smelting, is a hard, lustrous, silver-gray metal.

Nickel sulfide

Nickel sulfide

Nickel sulfide is any inorganic compound with the formula NiSx. They range in color from bronze (Ni3S2) to black (NiS2). The nickel sulfide with simplest stoichiometry is NiS, also known as the mineral millerite. From the economic perspective, Ni9S8, the mineral pentlandite, is the chief source of mined nickel. Other minerals include heazlewoodite (Ni3S2) and polydymite (Ni3S4). The mineral Vaesite is NiS2. Some nickel sulfides are used commercially as catalysts.

Johannes F. Vaes

Johannes F. Vaes

Johannes Franciscus Vaes was a Belgian mineralogist and geologist associated with the Union Minière du Haut-Katanga, in Belgian Congo, now the Democratic Republic of the Congo.

Pyrite group

Pyrite group

The pyrite group of minerals is a set of cubic crystal system minerals with diploidal structure. Each metallic element is bonded to six "dumbbell" pairs of non-metallic elements and each "dumbbell" pair is bonded to six metal atoms.

Pyrite

Pyrite

The mineral pyrite, or iron pyrite, also known as fool's gold, is an iron sulfide with the chemical formula FeS2 (iron (II) disulfide). Pyrite is the most abundant sulfide mineral.

Chalcopyrite

Chalcopyrite

Chalcopyrite ( KAL-kə-PY-ryte, -⁠koh-) is a copper iron sulfide mineral and the most abundant copper ore mineral. It has the chemical formula CuFeS2 and crystallizes in the tetragonal system. It has a brassy to golden yellow color and a hardness of 3.5 to 4 on the Mohs scale. Its streak is diagnostic as green-tinged black.

Linnaeite

Linnaeite

Linnaeite is a cobalt sulfide mineral with the composition Co+2Co+32S4. It was discovered in 1845 in Västmanland, Sweden, and was named to honor Carl Linnaeus (1707–1778).

Polydymite

Polydymite

Polydymite, Ni2+Ni23+S4, is a supergene thiospinel sulfide mineral associated with the weathering of primary pentlandite nickel sulfide.

Carbonate rock

Carbonate rock

Carbonate rocks are a class of sedimentary rocks composed primarily of carbonate minerals. The two major types are limestone, which is composed of calcite or aragonite (different crystal forms of CaCO3), and dolomite rock (also known as dolostone), which is composed of mineral dolomite (CaMg(CO3)2).

Black Forest

Black Forest

The Black Forest is a large forested mountain range in the state of Baden-Württemberg in southwest Germany, bounded by the Rhine Valley to the west and south and close to the borders with France and Switzerland. It is the source of the Danube and Neckar rivers.

Filipstad

Filipstad

Filipstad is a locality and the seat of Filipstad Municipality, Värmland County, Sweden, with 10,644 inhabitants in 2019.

Alleghany County, North Carolina

Alleghany County, North Carolina

Alleghany County is a county located in the U.S. state of North Carolina. As of the 2020 Census, the population was 10,888. Its county seat is Sparta.

Source: "Cattierite", Wikipedia, Wikimedia Foundation, (2022, November 25th), https://en.wikipedia.org/wiki/Cattierite.

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References
  1. ^ Warr, L.N. (2021). "IMA–CNMNC approved mineral symbols". Mineralogical Magazine. 85 (3): 291–320. Bibcode:2021MinM...85..291W. doi:10.1180/mgm.2021.43. S2CID 235729616.
  2. ^ Mineralienatlas
  3. ^ a b Handbook of Mineralogy
  4. ^ Fact sheet from Mindat.org
  5. ^ Fact sheet from Webmineral
  6. ^ Kerr, Paul F. (1945). "Cattierite and Vaesite: New Co-Ni Minerals from the Belgian Kongo" (PDF). 30: 483–492. {{cite journal}}: Cite journal requires |journal= (help)


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