Tenacity
-
Slightly sectile
Solubility
-
1.04 x 10−25 g per 100 ml water (Ksp at 25°C = 2 x 10−32)
Durability
-
-
Specific Gravity
3.20-3.502
1
7.18
👆🏻
Fracture
-
Uneven
Cleavage
Indiscernible
Prismatic {10 1 0}, perfect
Mohs Hardness
6-72-2.5
2
10
👆🏻
Chemical Composition
Ruby Zoisite: (Ca,Na)(Al,Mg,Fe)3Al6(BO3)3Si6O18(OH)4
HgSMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references