Item talk:Q162435
From geokb
Mindat Short Description
Hematite Group. The iron analogue of Corundum, Eskolaite, and Karelianite.
Hematite is rather variable in its appearance - it can be in reddish brown, ocherous masses, dark silvery-grey scaled masses, silvery-grey to black crystals, and dark-grey ma...
Geoscience Ontology Status Notes
Mineral name has been known since antiquity and predates any formal descriptive publication, for instance, Agricola G (1556) Hematite. in De Re Metallica, translated by Hoover H C and Hoover L H 1950, 111-111
IMA Formula (from Mindat)
Fe2O3
RRUFF Formula (from Geoscience Ontology)
Fe3+2O3