Formula: Pb2Mn(AsO3)2.2H2O
Origin of name: for Roland Rouse, American mineralogist and crystallographer
Crystal system: triclinic
Crystal class: -1 or 1
Twinning:
Unit cell:
Colour: yellow-orange
Diaphaneity:
Luster: dull, vitreous on cleavage
Habit: elongated crystals to 0.2 mm
Hardness: 3
Specific gravity: 5.70
Cleavage: 2; {010} and {110} perfect
Tenacity:
Streak: light yellow
Synonyms/varieties:
Comments:
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