Formula: BaAl3(PO4)(PO3OH)(OH)6
Origin of name: For H. Gorceix, Brazilian geologist
Crystal system: Monoclinic, pseudotrigonal
Crystal class: m
Twinning:
Unit cell:
Colour: Whitish, brown
Diaphaneity:
Luster: Vitreous to dull
Habit: Botryoidal, radial-fibrous aggregates, grains, pebbles
Hardness: 6
Specific gravity:
Cleavage: None
Tenacity:
Streak:
Synonyms/varieties:
Comments:
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