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
billietite
Geology; Minerals
Billietite is a uncommon mineral of Uranium that contains Barium. It has the chemical formula: Ba(UO 2 ) 6 O 4 (OH) 6 •8H 2 O. It usually occurs as clear yellow orthorhombic crystals. Billietite is ...
fichtelite
Geology; Minerals
Fichtelite is a rare white mineral found in fossilized wood from Bavaria. It crystallizes in the monoclinic crystal system. It is a cyclic hydrocarbon dimethyl-isopropyl-perhydrophenanthrene, C 19 H ...
frankhawthorneite
Geology; Minerals
Frankhawthorneite Cu 2 Te 6+ O 4 (OH) 2 is a monoclinic copper tellurate mineral named after Prof. Frank Christopher Hawthorne (born 1946), University of Manitoba, Winnipeg, Canada. It was ...
thenardite
Geology; Minerals
Thenardite is an anhydrous sodium sulfate mineral, Na 2 SO 4 which occurs in arid evaporite environments. It also occurs in dry caves and old mine workings as an efflorescence and as a crusty ...
herbertsmithite
Geology; Minerals
Herbertsmithite is a mineral with chemical structure ZnCu 3 (OH) 6 Cl 2 . It is named after the mineralogist Herbert Smith (1872-1953) and was first found in 1972 in Chile. A polymorph of kapellasite ...
boulangerite
Geology; Minerals
Boulangerite is a sulfosalt mineral, lead antimony sulfide, formula Pb 5 Sb 4 S 11 . It was named in 1837 in honor of French mining engineer Charles Boulanger (1810-1849). It forms metallic grey ...
