Formula: Be2(PO4)(OH) . 4H2O
Origin of name: For L. de Moraes, Brazilian geologist
Crystal system: Monoclinic
Crystal class: 2/m
Twinning:
Unit cell: a = 8.55 Å, b = 36.90 Å, c = 7.13 Å, β = 97.7°
Colour: White
Diaphaneity:
Luster:
Habit: Crystals acicular; spherulitic masses; crusts with coarse fibrous structure
Hardness:
Specific gravity: 1.805
Cleavage: 2; Excellent
Tenacity:
Streak: White
Synonyms/varieties:
Comments:
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