Tenacity
-
-
Solubility
-
-
Durability
-
-
Specific Gravity
2.786.30-6.39
1
7.18
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Fracture
Uneven, Conchoidal
Conchoidal
Cleavage
{???} Distinct, {???} Indistinct
[001] good, [210] distinct
Mohs Hardness
5-63-3.5
2
10
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Chemical Composition
3CaAl 2Si 2O 8 · CaCO 3Anthony et al , Handbook of mineralogy (2001)
PbSO 4Michael OâDonoghue , Gems, Sixth edition (2006) More from other references