1 Physical Properties
1.1 Tenacity
Not Available
Not Available
1.2 Solubility
Insoluble: HCl
Not Available
1.3 Durability
Not Available
Not Available
1.4 Specific Gravity
3.61-3.682.55-2.63
1
7.18
1.5 Fracture
Conchoidal, ConchoidalArthur Thomas, Gemstones (2009), Conchoidal, Brittle
Uneven, Uneven, Gems
1.6 Cleavage
[10 1 1] poor
{001} Perfect, {010} Good
1.7 Mohs Hardness
1.8 Chemical Composition
BaTiSi 3O 9Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
KAlSi 3O 8Arthur Thomas , Gemstones (2009)