Formula: Mn(SO4).H2O
Origin of name: for I Szmik, Hungarian mining official
Crystal system: monoclinic
Crystal class: 2/m
Twinning:
Unit cell:
Colour: grayish white, brownish white, reddish, rose-red
Diaphaneity:
Luster:
Habit: stalactitic masses
Hardness: 1.5
Specific gravity: 2.85 to 3.21
Cleavage: none
Tenacity:
Streak:
Synonyms/varieties:
Comments:
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