Formula: Sb2S3
Origin of name: From Greek meta - after and stibnite
Crystal system: Amorphous
Crystal class: Unknown
Twinning:
Unit cell:
Colour: Red, purple, purplish gray
Diaphaneity: Transparent in thin splinters
Luster: Submetallic
Habit: Massive; mammillary coatings; stains
Hardness: 2 to 3
Specific gravity:
Cleavage: None
Tenacity:
Streak: Red
Synonyms/varieties:
Comments: Dimorphous with stibnite
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