Formula: Zn(AsO4)2.2H2O
Origin of name: for Walter Richard Kahn
Crystal system: triclinic
Crystal class: -1
Twinning:
Unit cell: a = 6.71, b = 8.989, c = 14.553, Z = 4; α = 105.59°, β = 93.44°, γ = 108.68°
Colour: pale yellow to colourless
Diaphaneity:
Luster:
Habit: crystals bladed, elongated along a-axis, in radiating masses to 5 mm
Hardness:
Specific gravity: 4.24
Cleavage: 3; {001} perfect, {010} and {100} distinct to good
Tenacity:
Streak: white
Synonyms/varieties:
Comments:
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