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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

abswurmbachite

Geology; Minerals

Abswurmbachite is a copper manganese silicate mineral ((Cu,Mn 2+ )Mn 3+ 6 O 8 SiO 4 ). It was first described in 1991 and named after Irmgard Abs-Wurmbach (born 1938), a German mineralogist. It ...

allargentum

Geology; Minerals

Allargentum is a mineral from the class of antimonides, superclass of sulfides and sulfosalts (sometimes ascribed to the natural elements and alloys class), with formula written as Ag 1-x Sb x , ...

saliotite

Geology; Minerals

Saliotite is a rare colorless to pearl white phyllosilicate mineral in the smectite group with formula (Li,Na)Al 3 (AlSi 3 O 10 )(OH) 5 . It is an ordered 1:1 interstratification of cookeite and ...

sylvite

Geology; Minerals

Sylvite is potassium chloride (KCl) in natural mineral form. It forms crystals in the isometric system very similar to normal rock salt, halite (NaCl). The two are, in fact, isomorphous. Sylvite is ...

jarosite

Geology; Minerals

Jarosite is a basic hydrous sulfate of potassium and iron with a chemical formula of KFe 3+ 3 (OH) 6 (SO 4 ) 2 . This sulfate mineral is formed in ore deposits by the oxidation of iron sulfides. ...

mullite

Geology; Minerals

Mullite or porcelainite is a rare silicate mineral of post-clay genesis. It can form two stoichiometric forms 3Al 2 O 3 2SiO 2 or 2Al 2 O 3 SiO 2 . Unusually, mullite has no charge balancing ...

mirabilite

Geology; Minerals

Mirabilite, also known as Glauber's salt, is a hydrous sodium sulfate mineral with the chemical formula Na 2 SO 4 ·10H 2 O. It is a vitreous, colorless to white monoclinic mineral that forms as an ...

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