Tenacity
-
-
Solubility
-
-
Durability
-
-
Specific Gravity
3.43-3.444.80-5.50
1
7.18
👆🏻
Fracture
-
-
Cleavage
None Observed
Indistinct
Mohs Hardness
6.5-75-5.5
2
10
👆🏻
Chemical Composition
Ca 2(Mg,Al) 6(Si,Al,B) 6O 20Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
(Ce,La,Nd,Th)PO 4Michael OâDonoghue , Gems, Sixth Edition (2006)