Manganarsite

Formula:  Mn3As2O4(OH)4

Origin of name:  From Manganese and arsenic

 

Crystal system:  Hexagonal

Crystal class:  -3m

Twinning: 

Unit cell: 

 

Colour:  Pinkish-brown

Diaphaneity: 

Luster:  Vitreous

Habit:  Crystals platy, 1 mm, in aggregates

Hardness:  3

Specific gravity:  3.64

Cleavage:  1; {001} perfect

Tenacity: 

Streak:  Light pink

 

Synonyms/varieties:

 

Comments: 

 

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