Tenacity
-
Brittle
Solubility
-
-
Durability
-
-
Specific Gravity
2.55-2.573.69-3.81
1
7.18
👆🏻
Fracture
Uneven
Uneven, Conchoidal to uneven, ConchoidalWalter Schumann
Cleavage
2,1 basal ; 2,1 prismatic ; 3,1 pinacoidal
Distinct on {110}, imperfect on {010}, poor on {001}
Mohs Hardness
6-6.58.5
2
10
👆🏻
Chemical Composition
KAlSi3O8
BeAl 2 O 4