Formula: MgFe2O4
Origin of name: From magnesium and ferric ion
Crystal system: Cubic
Crystal class: 4/m -3 2/m
Twinning:
Unit cell:
Colour: Black to brownish black
Diaphaneity: Opaque
Luster: Metallic, splendent to dull
Habit: Crystals octahedral, minute; massive, fine granular
Hardness: 5.5 to 6.5
Specific gravity: 4.44
Cleavage: None
Tenacity:
Streak: Black
Synonyms/varieties:
Comments: Series with magnetite; strongly magnetic
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