Tenacity
-
Brittle
Solubility
-
-
Durability
-
-
Specific Gravity
2.77-2.885.9-6.3
1
7.18
👆🏻
Fracture
Uneven
Conchoidal, Uneven
Cleavage
Perfect basal
On {101}, distinct; on {112}, interrupted; on {001}, indistinct
Mohs Hardness
2.54.5-5
2
10
👆🏻
Chemical Composition
K(Al,Cr) 3Si 3O 10(OH) 2Gemdat.org , Management Team (2012)
CaWO 4Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references