Formula: Bi3(AsO4)2O(OH)
Origin of name: for Anton Preisinger, Austrian mineralogist
Crystal system: triclinic
Crystal class: -1
Twinning:
Unit cell:
Colour: grayish white
Diaphaneity: translucent
Luster: subadamantine to adamantine
Habit: crystals platy, rounded faces and edges, to 0.2 mm
Hardness: 3 to 4
Specific gravity: 7.24
Cleavage: none
Tenacity:
Streak: white
Synonyms/varieties:
Comments:
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