Tenacity
-
-
Solubility
-
-
Durability
-
-
Specific Gravity
3.20-3.503.05-3.08
1
7.18
👆🏻
Fracture
-
Subconchoidal, Uneven, Conchoidal
Cleavage
Indiscernible
Poor on {100}
Mohs Hardness
6-75
2
10
👆🏻
Chemical Composition
Ruby Zoisite: (Ca,Na)(Al,Mg,Fe)3Al6(BO3)3Si6O18(OH)4
Mn2+ Al(PO 4)(OH) 2H 2OMichael OâDonoghue , Gems, Sixth Edition (2006)