Formula: FeTe2
Origin of name: For Max Frohberg, Canadian geologist
Crystal system: Orthorhombic
Crystal class: 2/m 2/m 2/m
Twinning:
Unit cell:
Colour: White with blue or pink tint when polished
Diaphaneity: Opaque
Luster: Metallic
Habit: Massive, embedded grains, minute
Hardness: 3 to 4
Specific gravity: 8.07
Cleavage: None
Tenacity:
Streak:
Synonyms/varieties:
Comments: Series with mattagamite
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