Formula: PbGa3[(AsO4),(SO4)]2(OH)2
Origin of name: From gallium and beudantite
Crystal system: Hexagonal
Crystal class: 3m
Twinning:
Unit cell:
Colour: Pale yellow, greenish, cream
Diaphaneity: Transparent
Luster: Vitreous
Habit: As zones up to 200 µm
Hardness: 4
Specific gravity: 4.61
Cleavage: 1; {001} possible
Tenacity:
Streak: White to pale yellow
Synonyms/varieties:
Comments: Ga analogue of beudantite
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