Formula: PtFe
Origin of name: From tetragonal and composition (ferro = iron)
Crystal system: Tetragonal
Crystal class: 4/m 2/m 2/m
Twinning:
Unit cell: a = 3.84, c = 3.72
Colour: Gray, silver white
Diaphaneity: Opaque
Luster: Metallic
Habit: Tiny grains embedded in other platinum-iron alloys
Hardness: 4.5
Specific gravity: 14.3
Cleavage: none
Tenacity:
Streak:
Synonyms/varieties:
Comments: Strongly ferromagnetic
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