Tenacity
Brittle
-
Solubility
-
-
Durability
-
-
Specific Gravity
5.6-5.763.20-3.50
1
7.18
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Fracture
Uneven
-
Cleavage
[001] perfect; [100] distinct
Indiscernible
Mohs Hardness
2.5-36-7
2
10
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Chemical Composition
Pb 5Cu 2(SO 4) 3(CO 3)(OH) 6Anthony et al , Handbook of mineralogy (2001)
Ruby Zoisite: (Ca,Na)(Al,Mg,Fe)3Al6(BO3)3Si6O18(OH)4