Formula: FeFe2(SiO4)2
Origin of name: Locality; near Lai-He village, China
Crystal system: Monoclinic
Crystal class: 2/m
Twinning:
Unit cell:
Colour: Black
Diaphaneity: Opaque
Luster: Submetallic to metallic
Habit: Crystals thick tabular to short prismatic, tiny
Hardness: ~6
Specific gravity: 3.92
Cleavage: 3; {100}, {010} perfect, {001} less perfect
Tenacity:
Streak: Pale brown
Synonyms/varieties:
Comments:
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