Tenacity
-
-
Solubility
Insoluble: HCl
insoluble
Durability
-
-
Specific Gravity
3.61-3.682.36
1
7.18
👆🏻
Fracture
Conchoidal
Uneven, Subconchoidal, Fibrous
Cleavage
[10 1 1] poor
[110] perfect, [101] good, [010] distinct
Mohs Hardness
6-6.53.5-4
2
10
👆🏻
Chemical Composition
BaTiSi 3O 9Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Al 3(PO 4) 2(OH,F) 3 · 5H 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references