Tenacity
-
-
Solubility
-
-
Durability
-
-
Specific Gravity
3.20-3.503.19-3.56
1
7.18
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Fracture
-
Uneven, Conchoidal
Cleavage
Indiscernible
{110} Perfect, {010} Indistinct
Mohs Hardness
6-75.5-6
2
10
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Chemical Composition
Ruby Zoisite: (Ca,Na)(Al,Mg,Fe)3Al6(BO3)3Si6O18(OH)4
(Ca,Na)(Mg,Fe,Al,Ti)(Si,Al) 2O 6Anthony et al , Handbook of mineralogy (2001)