Formula: NaAl3(PO4)2(OH)4
Origin of name: Locality; Brazil
Crystal system: Monoclinic
Crystal class: 2/m
Unit cell: a = 11.23 Ǻ, b = 10.14 Ǻ, c = 7.10 Ǻ, β = 97.4°
Colour: Colourless, pale yellowish to yellowish green
Diaphaneity:
Habit: Crystals short prismatic to nearly equant; globular
Hardness: 5.5
Specific gravity: 2.980
Cleavage: 1; {010} good
Streak: Colourless
Synonyms/varieties:
Comments:
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