Tenacity
Brittle
Tough
Solubility
-
-
Durability
-
-
Specific Gravity
5.9-6.33.20-3.26
1
7.18
👆🏻
Fracture
Conchoidal, Uneven
Splintery
Cleavage
On {101}, distinct; on {112}, interrupted; on {001}, indistinct
{010} perfect
Mohs Hardness
4.5-56-7.5
2
10
👆🏻
Chemical Composition
CaWO 4Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Al 2SiO 5Michael OâDonoghue , Gems, Sixth Edition (2006)