Formula: Ca3(AsO4)2.10H2O
Origin of name: after locality Rauenthal veins, Ste.-Marie-aux-Mines, France
Crystal system: triclinic
Crystal class: 1
Twinning:
Unit cell: a = 12.564, b = 12.169, c = 6.195, α = 89.09°, β = 79.69°, γ = 118.58°
Colour: snow-white to colourless
Diaphaneity: Translucent
Luster:
Habit: tiny crystals, irregular polycrystalline spherules, small
Hardness:
Specific gravity: 2.36
Cleavage: none
Tenacity:
Streak: White
Synonyms/varieties:
Comments:
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