Formula: MnCl2
Origin of name: for A. Scacchi, Italian mineralogist
Crystal system: hexagonal
Crystal class: -3 2/m
Twinning:
Unit cell:
Colour: rose-red, colourless, brown, brownish red, pinkish red, darkens to brown or brownish red, pinkish red on exposure
Diaphaneity:
Luster:
Habit: deliquescent crystalline crusts
Hardness: 1
Specific gravity: 2.98
Cleavage: 1; {0001} perfect
Tenacity:
Streak:
Synonyms/varieties:
Comments:
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