Aegirine-augite Field of view: 1 mm Locality: In den Dellen Quarry, Mendig, Germany — Photo: Henk Smeets – tomeikminerals.com · CC BY 4.0
Aegirine-augite
Aegirine is a mineral. It is a member of the clinopyroxene group of inosilicate minerals. Acmite is a fibrous green-colored variety of aegirine, with the name also used as a synonym. It was first described in 1821, in Kongsberg, Norway.
Intro adapted from Wikipedia (CC BY-SA).
Aegirine-augite is an IMA-recognized mineral species in the silicate class, with the chemical formula (Ca,Na)(Fe³⁺,Mg,Fe²⁺)Si₂O₆.
It crystallizes in the monoclinic crystal system (space group C2/c). It is a member of the Pyroxene structural group.
IMA symbol Aeg-Aug, IMA status: approved, named in 1892.
Index entry. This entry combines official IMA/RRUFF species data with published physical-property data and a Wikipedia introduction — a full written entry hasn’t been published yet.
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