6 Terms
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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
Contributors in Minerals
Minerals
chrisstanleyite
Geology; Minerals
Chrisstanleyite, Ag 2 Pd 3 Se 4 , is a selenide mineral that crystallizes in high saline, acidic hydrothermal solution at low temperatures as part of selenide vein inclusions in and alongside calcite ...
donnayite-(Y)
Geology; Minerals
Donnayite-(Y) is a rare earth carbonate mineral containing the rare earth metal yttrium. It was first discovered in 1978 at Mont St-Hilaire, Quebec. Donnayite was subsequently identified and named ...
albrechtschraufite
Geology; Minerals
Albrechtschraufite is a very rare complex hydrated Ca- and Mg-bearing uranyl fluoride carbonate mineral with formula Ca 4 Mg(UO 2 ) 2 (CO 3 ) 6 F 2 ·17H 2 O. The molecular weight of ...
hydroxylapatite
Geology; Minerals
Hydroxylapatite, also called hydroxyapatite (HA), is a naturally occurring mineral form of calcium apatite with the formula Ca 5 (PO 4 ) 3 (OH), but is usually written Ca 10 (PO 4 ) 6 (OH) 2 to ...
pseudomalachite
Geology; Minerals
Pseudomalachite is a phosphate of copper with hydroxyl, named from the Greek for "false" and "malachite", because of its similarity in appearance to the carbonate mineral malachite, Cu 2 (CO 3 )(OH) ...
