Tenacity
-
-
Solubility
-
-
Durability
-
-
Specific Gravity
2.98-3.103.20-3.50
1
7.18
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Fracture
Uneven, Conchoidal
-
Cleavage
{100} Perfect, {110} Good, {011} Distinct
Indiscernible
Mohs Hardness
5.5-66-7
2
10
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Chemical Composition
LiAl(PO 4)(OH,F)Walter Schumann , Gemstones of the world (2001) More from other references
Ruby Zoisite: (Ca,Na)(Al,Mg,Fe)3Al6(BO3)3Si6O18(OH)4