Chromite deposits, Tomarza, Kayseri Province, Central Anatolia Region, Turkey

FeCr₂O₄

Crystal System: cubic
Colour: black
Lustre: resinous, greasy, metallic, sub-metallic, dull
Habitus: granular or massive. Rarely octahedral.
Fracture: irregular/uneven or sub-conchoidal
Cleavage: none observed
Hardness: 5½
Density: 5.12 g/cm³ 
Origin and geological occurrence: chromite occurs in peridotitic rocks. It is an important ore minerals for chromium, being concentrated, as cumulus mineral, in the ultramafic portions of layered mafic intrusions. In alluvial deposits.

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Samples:

	4.5 Chromite Euhedral octahedral to anhedral black grains in alluvial sand. Connecticut River, Middletown, USA. #oxides
	4.25 Chromite Anhedral crystals in cumulitic rock. #economic minerals