Tenacity
-
-
Solubility
-
-
Durability
-
-
Specific Gravity
6.30-6.392.9
1
7.18
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Fracture
Conchoidal
Fibrous
Cleavage
[001] good, [210] distinct
[010] Perfect, [100] Distinct, [011] Distinct
Mohs Hardness
3-3.52
2
10
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Chemical Composition
PbSO 4Michael OâDonoghue , Gems, Sixth edition (2006) More from other references
Amethyst, Clear Quartz, Smoky Quartz, Cacoxenite, Rutile, Geothite, Lepidocrocite