Tenacity
-
Brittle
Solubility
-
-
Durability
-
-
Specific Gravity
3.22-3.402.72-2.75
1
7.18
👆🏻
Fracture
Conchoidal
Uneven
Cleavage
1,2 prismatic.
Perfect on [001], good on [010], imperfect on [110]
Mohs Hardness
5-66-6.5
2
10
👆🏻
Chemical Composition
(Ca,Cr)MgSi 2O 6Gemdat.org , Management Team (2012)
Ca(70-90%)Na(30-10%)(Al,Si)AlSi 2O 8Michael OâDonoghue , Gems, Sixth Edition (2006)