کرومیت

Key facts

Mineral.name

Chromite

Mineral.category

Oxide minerals Spinel group Spinel structural group

Mineral.image

File:Chromite-201529.jpg

Mineral.imagesize

260px

Mineral.caption

Octahedral chromite crystal from the Freetown Layered Complex in Sierra Leone, Africa (size: 1.3 x 1.2 x 1.2 cm)

Mineral.formula

(Fe, Mg)Cr2O4

Mineral.IMAsymbol

Chr

Mineral.strunz

4.BB.05

Mineral.system

Isometric

Mineral.class

Hexoctahedral (mm) H-M symbol: (4/m 2/m)

Mineral.symmetry

Fdm (no. 227)

Mineral.unit cell

a = 8.344 Å; Z = 8