Formula: PbZn(AsO4)(OH)
Origin of name: As the arsenate analogue of descloizite
Crystal system: Orthorhombic
Crystal class: 222
Unit cell: a = 6.08 Å, b = 9.36 Å, c = 7.63 Å
Colour: Pale yellow to pale green
Diaphaneity: Transparent
Habit: Rosette-like aggregates of tabular crystals
Hardness: 4-5
Specific gravity: 5.67
Cleavage: None
Streak: White
Synonyms/varieties:
Comments: Member of the adelite group. A secondary mineral in oxidised hydrothermal polymetallic deposits.
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