Formula: Ca(Mg,Al,Fe)2(AsO4)2(H2O,OH)2
Origin of name: For Walter Cabalzar (1919-), an amateur mineralogist of Chur, Switzerland, who contributed to the mineralogy of the Graubunden canton.
Crystal system: Monoclinic
Crystal class: 2/m
Twinning:
Unit cell: a = 8.925, b = 6.143, c = 7.352, β = 115.25°
Colour: Light brown, brownish pink, orange brown
Diaphaneity: Transparent
Luster: Vitreous
Habit: Granular, aggregates
Hardness: 5
Specific gravity: 3.89
Cleavage: None
Tenacity: Irregular fracture
Streak: White
Synonyms/varieties:
Comments: A member of the tsumcorite group.
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