Tenacity
Brittle
-
Solubility
-
Partly soluble in HCl.
Durability
-
-
Specific Gravity
5.9-6.33.32-3.43
1
7.18
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Fracture
Conchoidal, Uneven
Conchoidal
Cleavage
On {101}, distinct; on {112}, interrupted; on {001}, indistinct
{100} perfect; {110} and {1 1 0} good; {010} poor
Mohs Hardness
4.5-55.5-6
2
10
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Chemical Composition
CaWO 4Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
(Ca,Mn2+ )Si 3O 9Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references