Tenacity
Brittle
-
Solubility
-
-
Durability
-
-
Specific Gravity
5.9-6.32.55-2.65
1
7.18
👆🏻
Fracture
Conchoidal, Uneven
Conchoidal
Cleavage
On {101}, distinct; on {112}, interrupted; on {001}, indistinct
Perfect {10 1 0}
Mohs Hardness
4.5-55.5-6
2
10
👆🏻
Chemical Composition
CaWO 4Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
(Na,Ca,K) 8(Si,Al) 12O 24(SO 4,Cl,CO 3) 3(H 2O)Arthur Thomas , Gemstones (2009)