Tenacity
-
Brittle
Solubility
-
-
Durability
-
-
Specific Gravity
3.48-3.602.90-2.98
1
7.18
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Fracture
Sub-Conchoidal, Conchoidal
Conchoidal
Cleavage
Distinct on [110], parting on {221}
Rare tabular and prismatic crystals. Usually occurs as fibrous, parallel veins that break off into cleavage fragments.
Mohs Hardness
5-5.53.5
2
10
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Chemical Composition
CaTiSiO5
CaSO 4Michael OâDonoghue , Gems, Sixth edition (2006) More from other references