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

Additional References