Tenacity
-
-
Solubility
Insoluble: HCl
-
Durability
-
-
Specific Gravity
3.61-3.683.19-3.56
1
7.18
👆🏻
Fracture
Conchoidal
Uneven, Conchoidal
Cleavage
[10 1 1] poor
{110} Perfect, {010} Indistinct
Mohs Hardness
6-6.55.5-6
2
10
👆🏻
Chemical Composition
BaTiSi 3O 9Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
(Ca,Na)(Mg,Fe,Al,Ti)(Si,Al) 2O 6Anthony et al , Handbook of mineralogy (2001)