Formula: Ca2Cu5Sb(AsO4)4Cl(OH)6.6H2O
Origin of name: after locality Richelsdorf, Germany
Crystal system: monoclinic
Crystal class: 2/m
Twinning:
Unit cell:
Colour: turquoise blue to sky-blue
Diaphaneity:
Luster: vitreous
Habit: crystals tabular, to 0.5 mm, rare, spheroidal aggregates, to 0.2 mm
Hardness: 2
Specific gravity: 3.20
Cleavage: 1; {001} perfect
Tenacity:
Streak:
Synonyms/varieties:
Comments:
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