Formula: CaMn2(AsO4)2(OH)3
Origin of name: Named as the Mn-dominant lotharmeyerite
Crystal system: Monoclinic
Crystal class: 2/m
Twinning:
Unit cell: a = 9.043, b = 6.2314, c = 7.3889, β = 116.392°
Colour: Brownish red, dark reddish orange
Diaphaneity: Transparent to translucent
Luster: Adamantine
Habit: Platy, aggregates
Hardness: 3
Specific gravity: 3.77
Cleavage: [001] distinct
Tenacity: Brittle
Streak: Light brown
Synonyms/varieties:
Comments:
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