Formula: Na2Ca(PO4)F
Origin of name: from composition
Crystal system: triclinic
Crystal class: 1
Twinning:
Unit cell: a = 5.3232, b = 12.2103, c = 7.0961, α = 90.002°, β = 89.998°, γ = 89.965°
Colour: Colourless
Diaphaneity: Transparent
Luster: Vitreous
Habit: 1 mm inclusions
Hardness: 3
Specific gravity: 2.85
Cleavage: None
Tenacity: Conchoidal fracture
Streak: White
Synonyms/varieties:
Comments:
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