Tenacity
-
Brittle
Solubility
-
-
Durability
-
-
Specific Gravity
2.44-2.625.9-6.3
1
7.18
👆🏻
Fracture
Uneven
Conchoidal, Uneven
Cleavage
Indiscernible
On {101}, distinct; on {112}, interrupted; on {001}, indistinct
Mohs Hardness
2.5-5.54.5-5
2
10
👆🏻
Chemical Composition
H 4Mg 3Si 2O 9Walter Schumann , Gemstones of the world (2001) More from other references
CaWO 4Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references