Tenacity
-
-
Solubility
-
-
Durability
-
-
Specific Gravity
3.43-3.443.32
1
7.18
👆🏻
Fracture
-
-
Cleavage
None Observed
{???} Distinct, {???} Distinct, {???} Distinct
Mohs Hardness
6.5-7-9999
2
10
👆🏻
Chemical Composition
Ca 2(Mg,Al) 6(Si,Al,B) 6O 20Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
LiFe3+ (PO 4)(OH)Anthony et al , Handbook of mineralogy (2001)