Formula: MnO
Origin of name: From composition
Crystal system: Cubic
Crystal class: 4/m -3 2/m
Twinning:
Unit cell:
Colour: Emerald green; becomes black on exposure
Diaphaneity: Transparent
Luster: Vitreous
Habit: Crystals octahedral; massive; irregular grains
Hardness: 5.5
Specific gravity: 5.364
Cleavage: 1; {001} fair
Tenacity:
Streak: Brown
Synonyms/varieties:
Comments:
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