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Ajna
Chemical Formula:
Ca5(PO4)3(OH)0.33F0.33Cl0.33
Crystal Class:
Phosphate
Crystal System:
Hexagonal - Dipyramidal
Dana Classification:
41.08.01.00
Name:
Blue Apatite
Strunz Classification:
08.BN.05
Synonym:
Davisonite, Dennisonite
Cleavage: {0001} Indistinct, {1010} Indistinct
Crystal Habit: Colloform, Earthy, Massive
Diaphaneity: Transparent to translucent
Formula Mass: 509.12 gm
Fracture: Conchoidal
Luster: Vitreous
Mohs Hardness: 5
Specific Gravity: 3.1 to 3.3
Streak: White