Tenacity
Brittle
-
Solubility
-
-
Durability
-
-
Specific Gravity
5.9-6.32.50-2.80
1
7.18
👆🏻
Fracture
Conchoidal, Uneven
-
Cleavage
On {101}, distinct; on {112}, interrupted; on {001}, indistinct
Perfect
Mohs Hardness
4.5-55-6.5
2
10
👆🏻
Chemical Composition
CaWO 4Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Na 4(Al,Si) 12O 24Cl to Ca 4(Si,Al) 12O 24(CO 3,SO 4)Arthur Thomas , Gemstones (2009)