Scacchite

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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