Tenacity
-
-
Solubility
-
-
Durability
-
-
Specific Gravity
2.902.9-3.5
1
7.18
👆🏻
Fracture
Conchoidal
Conchoidal
Cleavage
None
{110} Perfect, {???} Distinct, {???} Distinct
Mohs Hardness
65.5-6
2
10
👆🏻
Chemical Composition
CaBe 2(PO 4) 2Michael OâDonoghue , Gems, Sixth Edition (2006)
(Mg,Fe2+ ) 2(Mg,Fe2+ ) 5Si 8O 22(OH) 2Anthony et al , Handbook of mineralogy (2001)