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Minerals

Naturally occurring substance that is solid and stable at room temperature, representable by a chemical formula, usually abiogenic, and has an ordered atomic structure. It is different from a rock, which can be an aggregate of minerals or non-minerals, and does not have a specific chemical composition. The general definition of a mineral encompasses the following criteria: 1 - Naturally occurring 2 - Stable at room temperature 3 - Represented by a chemical formula 4 - Usually abiogenic 5 - Ordered atomic arrangement

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Minerals

patrónite

Geology; Minerals

Patronite is the vanadium sulfide mineral with formula VS 4 . The material is usually described as V 4+ (S 2 2- ) 2 . Structurally, it is a "linear-chain" compound with alternating bonding and ...

sborgite

Geology; Minerals

Sborgite is a sodium borate mineral with formula Na(B 5 O 6 (OH) 4 )·3H 2 O. The formula can be written as the oxide formulation, Na 2 O.5B 2 O 3 .10H 2 O. Sometimes called sodium pentaborate ...

strengite

Geology; Minerals

Strengite is a relatively rare iron phosphate mineral with the formula: FePO 4 · 2H 2 O. The mineral is named after the German mineralogist Johann August Streng (1830-1897). Lavender, pink or purple ...

samarskite-(y)

Geology; Minerals

Samarskite is a radioactive rare earth mineral series which includes samarskite-(Y) with formula: (YFe 3+ Fe 2+ U,Th,Ca) 2 (Nb,Ta) 2 O 8 and samarskite-(Yb) with formula (YbFe 3+ ) 2 (Nb,Ta) 2 O 8 ...

bentorite

Geology; Minerals

Bentorite is a mineral with the chemical formula Ca 6 (Cr,Al) 2 (SO 4 ) 3 (OH) 12 ·26(H 2 O). It is colored violet to light violet. Its crystals are hexagonal to dihexagonal dipyramidal. It is ...

cornubite

Geology; Minerals

Cornubite is a rare secondary copper arsenate mineral with formula: Cu 5 (AsO 4 ) 2 (OH) 4 . It was first described for its discovery in 1958 in Wheal Carpenter, Gwinear, Cornwall, England, UK. The ...

magadiite

Geology; Minerals

Magadiite is a hydrous sodium silicate mineral (NaSi 7 O 13 (OH) 3 ·4(H 2 O)) which precipitates from alkali brines as an evaporite phase. It forms as soft (Mohs hardness of 2) white powdery ...

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