Tags: Chemical Substance, Mineral.
Magnesioferrite is a magnesium iron oxide mineral a member of the magnetite series of spinels. Magnesioferrite crystallizes as black metallic octahedral crystals. It is named after its chemical composition of magnesium and ferric iron.The density is 4.6 – 4.7 (average = 4.65) and the diaphaniety is opaque. Occurs as well-formed fine sized crystals or massive and granular. Its hardness is 6-6.5. It has a metallic luster and a dark red streak.
