Formula: Fe
Origin of name: From Anglo-Saxon iren - iron
Crystal system: Cubic
Crystal class: 4/m -3 2/m
Twinning:
Unit cell:
Colour: Steel-gray to iron-black
Diaphaneity: Opaque
Luster: Metallic
Habit: Crystals rare; small grains to large masses
Hardness: 4
Specific gravity: 7.3 to 7.87
Cleavage: 2; {001}; {112} parting
Tenacity:
Streak:
Synonyms/varieties:
Comments: Magnetic
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