19 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
annabergite
Geology; Minerals
Annabergite is an arsenate mineral consisting of a hydrous nickel arsenate, Ni 3 (AsO 4 ) 2 ·8H 2 O, crystallizing in the monoclinic system and isomorphous with vivianite and erythrite. Crystals are ...
cervandonite
Geology; Minerals
Cervandonite is a rare arsenosilicate mineral. It has a chemical formula (Ce,Nd,La)(Fe 3+ ,Fe 2+ ,Ti 4+ ,Al) 3 SiAs(Si,As)O 13 or (Ce,Nd,La)(Fe 3+ ,Fe 2+ ,Ti,Al) 3 O 2 (Si 2 O 7 )(As 3+ O 3 )(OH). ...
brianyoungite
Geology; Minerals
Brianyoungite is a secondary zinc mineral. the Commission on New Minerals, Nomenclature and Classification (CNMNC) of the International Mineralogical Association (IMA) classifies it as a carbonate ...
apophyllite
Geology; Minerals
The name apophyllite refers to a specific group of phyllosilicates, a class of minerals. Originally, the group name referred to a specific mineral, but was redefined in 1978 to stand for a class of ...
meridianiite
Geology; Minerals
Meridianiite — MgSO 4 •11H 2 O — is the crystalline 11-hydrate magnesium sulfate phase that precipitates from solutions saturated in Mg 2+ and SO 4 2- ions at temperatures less than 2 ˚C. Clear to ...
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