COBALT MINERALS

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Alloclasite

Class : Sulfides and sulfosalts
Subclass : Sulfides
Crystal system : Monoclinic
Chemistry : (CoFe)AsS
Rarity : Rare

Size : µm / mm / cm / dm / m

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Asbolane

Class : Oxides and hydroxides
Subclass : Hydroxides and hydrates
Crystal system : Trigonal
Chemistry : (Co,Ni)xMn(O,OH)4 nH2O
Rarity : Rare

Size : µm / mm / cm / dm / m

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Bieberite

Class : Sulphates, chromates, molybdates
Subclass : Anhydrous sulphates
Crystal system : Monoclinic
Chemistry : CoSO4 7H2O
Rarity : Very rare

Size : µm / mm / cm / dm / m

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Carrollite

Class : Sulfides and sulfosalts
Subclass : Sulfides
Crystal system : Cubic
Chemistry : Co2CuS4
Rarity : Rare

Size : µm / mm / cm / dm / m

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Cattierite

Class : Sulfides and sulfosalts
Subclass : Sulfides
Crystal system : Cubic
Chemistry : CoS2
Rarity : Very rare

Size : µm / mm / cm / dm / m

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Cobaltite

Class : Sulfides and sulfosalts
Subclass : Sulfides
Crystal system : Orthorhombic
Chemistry : CoAsS
Rarity : Rare

Size : µm / mm / cm / dm / m

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Erythrite

Class : Phosphates, arsenates, vanadates
Subclass : Hydrated arsenates
Crystal system : Monoclinic
Chemistry : Co3(AsO4)2 8H2O
Rarity : Rare

Size : µm / mm / cm / dm / m

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Glaucodot

Class : Sulfides and sulfosalts
Subclass : Sulfides
Crystal system : Orthorhombic
Chemistry : (Co,Fe)AsS
Rarity : Rare

Size : µm / mm / cm / dm / m

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Heterogenite

Class : Oxides and hydroxides
Subclass : Hydroxides and hydrates
Crystal system : Hexagonal
Chemistry : CoO(OH)
Rarity : Uncommon

Size : µm / mm / cm / dm / m

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Linnaeite

Class : Sulfides and sulfosalts
Subclass : Sulfides
Crystal system : Cubic
Chemistry : Co3S4
Rarity : Uncommon to fairly common

Size : µm / mm / cm / dm / m

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Roselite

Class : Phosphates, arsenates, vanadates
Subclass : Hydrated arsenates
Crystal system : Monoclinic
Chemistry : Ca2(Co,Mg)(AsO4)2 2H2O
Rarity : Very rare

Size : µm / mm / cm / dm / m

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Safflorite

Class : Sulfides and sulfosalts
Subclass : Arsenides
Crystal system : Orthorhombic
Chemistry : CoAs2
Rarity : Uncommon

Size : µm / mm / cm / dm / m

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Siegenite

Class : Sulfides and sulfosalts
Subclass : Sulfides
Crystal system : Cubic
Chemistry : (Ni,Co)3S4
Rarity : Rare

Size : µm / mm / cm / dm / m

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Skutterudite

Class : Sulfides and sulphosalts
Subclass : Arsenides
Crystal system : Cubic
Chemistry : CoAs2-3
Rarity : Uncommon

Size : µm / mm / cm / dm / m

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Spherocobaltite

Class : Carbonates, nitrates, borates
Subclass : Anhydrous carbonates
Crystal system : Trigonal
Chemistry : CoCO3
Rarity : Rare

Size : µm / mm / cm / dm / m

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