Tenacity
Brittle
Slightly sectile
Solubility
-
1.04 x 10−25 g per 100 ml water (Ksp at 25°C = 2 x 10−32)
Durability
-
-
Specific Gravity
2.90-3.002
1
7.18
👆🏻
Fracture
Conchoidal, Uneven
Uneven
Cleavage
None
Prismatic {10 1 0}, perfect
Mohs Hardness
5-5.52-2.5
2
10
👆🏻
Chemical Composition
CaBSiO 4(OH)Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
HgSMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references