Item talk:Q162186
From geokb
Mindat Short Description
Pyroxene Group. Clinopyroxene Subgroup. Both acmite and aegirine have been used as designations of pyroxenes close to NaFe3+Si2O6 in composition. Acmite has also often been used to refer to the brown variety with pointed terminations (usually {221} an...
Geoscience Ontology Status Notes
Berzelius J (1835) [Untitled note on aegirine], Neues Jahrbuch für Mineralogie, Geognosie, Geologie und Petrefaktenkunde 1835, 184-185
IMA Formula (from Mindat)
NaFe3+Si2O6
RRUFF Formula (from Geoscience Ontology)
NaFe3+Si2O6
