Tenacity
-
Brittle
Solubility
-
-
Durability
-
-
Specific Gravity
3.20-3.502.90-2.98
1
7.18
👆🏻
Fracture
-
Conchoidal
Cleavage
Indiscernible
Rare tabular and prismatic crystals. Usually occurs as fibrous, parallel veins that break off into cleavage fragments.
Mohs Hardness
6-73.5
2
10
👆🏻
Chemical Composition
Ruby Zoisite: (Ca,Na)(Al,Mg,Fe)3Al6(BO3)3Si6O18(OH)4
CaSO 4Michael OâDonoghue , Gems, Sixth edition (2006) More from other references