Formula: MnSO4 . 5H2O
Origin of name: Locality; Jokoku mine, Hokkaido, Japan
Crystal system: Triclinic
Crystal class: -1
Twinning:
Unit cell:
Colour: Pale pink
Diaphaneity:
Luster: Vitreous
Habit:
Hardness: ~ 2.5
Specific gravity: 2.03
Cleavage: None
Tenacity:
Streak: White
Synonyms/varieties:
Comments:
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