Formula: (Sr,Ce)Al3(AsO4)(SO4)(OH)6
Origin of name: Locality; Kemmlitz deposit, Saxony
Crystal system: Hexagonal
Crystal class: -3 2/m
Twinning:
Unit cell:
Colour: Light brown, colourless, cloudy brownish, zoned
Diaphaneity:
Luster:
Habit: Crystals pseudocubic rhombohedral, microscopic
Hardness: 5.5
Specific gravity: 3.63
Cleavage: 1; basal indistinct
Tenacity:
Streak:
Synonyms/varieties:
Comments:
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