Tenacity
Brittle
Brittle
Solubility
-
-
Durability
-
-
Specific Gravity
5.9-6.32.20-2.26
1
7.18
👆🏻
Fracture
Conchoidal, Uneven
Uneven
Cleavage
On {101}, distinct; on {112}, interrupted; on {001}, indistinct
Perfect on {110}
Mohs Hardness
4.5-55-5.5
2
10
👆🏻
Chemical Composition
CaWO 4Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Na 2[Al 2Si 3O 10] · 2H 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references