فروش مواد معدنی فلزی / کرومیت 37

Chromite is a crystalline mineral composed primarily of iron(II) oxide and chromium(III) oxide compounds. It can be represented by the chemical formula of FeCr₂O₄. It is an oxide mineral belonging to the spinel group. Wikipedia
Crystal system: Isometric
Cleavage: None, parting may develop along
Color: Black to brownish black; brown to brownish black on thin edges in transmitted light
Fracture: Uneven
Luster: Resinous, Greasy, Metallic, Sub-Metallic, Dull
Specific gravity: 4.5–4.8
Streak: Brown