Tenacity
-
Brittle
Solubility
-
-
Durability
-
-
Specific Gravity
3.20-3.502.33-2.37
1
7.18
👆🏻
Fracture
-
ConchoidalWalter Schumann
Cleavage
Indiscernible
Perfect on {010}, good on {100}
Mohs Hardness
6-77.5
2
10
👆🏻
Chemical Composition
Ruby Zoisite: (Ca,Na)(Al,Mg,Fe)3Al6(BO3)3Si6O18(OH)4
Be 2BO 3(OH)Ulrich Henn and Claudio C.