Tenacity
-
Brittle
Solubility
-
-
Durability
-
-
Specific Gravity
2.55-2.575.50-5.90
1
7.18
👆🏻
Fracture
Uneven
Conchoidal
Cleavage
2,1 basal ; 2,1 prismatic ; 3,1 pinacoidal
On {10 1 0}, perfect; parting on {000 1 }
Mohs Hardness
6-6.54
2
10
👆🏻
Chemical Composition
KAlSi3O8
(Zn,Mn2+ )OMichael OâDonoghue , Gems, Sixth Edition (2006)