Tenacity
-
Brittle
Solubility
-
-
Durability
-
-
Specific Gravity
6.30-6.392.60-2.65
1
7.18
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Fracture
Conchoidal
Uneven, Conchoidal
Cleavage
[001] good, [210] distinct
Perfect on {001}, very good on {010}, imperfect on {110}
Mohs Hardness
3-3.56-6.5
2
10
👆🏻
Chemical Composition
PbSO 4Michael OâDonoghue , Gems, Sixth edition (2006) More from other references
NaAlSi 3O 8Michael OâDonoghue , Gems, Sixth Edition (2006)