Tenacity
-
Brittle
Solubility
-
-
Durability
-
-
Specific Gravity
2.785.9-6.3
1
7.18
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Fracture
Uneven, Conchoidal
Conchoidal, Uneven
Cleavage
{???} Distinct, {???} Indistinct
On {101}, distinct; on {112}, interrupted; on {001}, indistinct
Mohs Hardness
5-64.5-5
2
10
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Chemical Composition
3CaAl 2Si 2O 8 · CaCO 3Anthony et al , Handbook of mineralogy (2001)
CaWO 4Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references