Item talk:Q162486
From geokb
Mindat Short Description
Common metamorphic silicate mineral. The generally bluish colour is caused by Fe(II)-Fe(III) charge transfer (Faye and Nickel, 1969).
Geoscience Ontology Status Notes
Called cianit in this paper: Hoffmann C A S (1789) Mineralsystem des Herrn Inspektor Werners mit dessen erlaubnis herausgegeben von C A S Hoffmann, Bergmannisches Journal 1, 369-386
IMA Formula (from Mindat)
Al2OSiO4
RRUFF Formula (from Geoscience Ontology)
Al2OSiO4
