Formula: CaBe2(PO4)2
Origin of name: For C. Hurlbut Jr., American mineralogist
Crystal system: Monoclinic
Crystal class: 2/m
Twinning:
Unit cell: a = 8.29 Ǻ, b = 8.80 Ǻ, c = 7.81 Ǻ, β = 90.5°
Colour: Colourless to greenish white
Diaphaneity:
Luster: Vitreous to greasy
Habit: Crystals stout prismatic, large
Hardness: 6
Specific gravity: 2.88
Cleavage: None
Tenacity: Conchoidal; brittle
Streak: White
Synonyms/varieties:
Comments:
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