Tenacity
-
Brittle
Solubility
-
-
Durability
-
-
Specific Gravity
2.54-2.615.9-6.3
1
7.18
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Fracture
Uneven
Conchoidal, Uneven
Cleavage
{001} Perfect, {010} Good
On {101}, distinct; on {112}, interrupted; on {001}, indistinct
Mohs Hardness
64.5-5
2
10
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Chemical Composition
KAlSi 3O 8Michael OâDonoghue , Gems, Sixth Edition (2006)
CaWO 4Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references