Tenacity
-
-
Solubility
-
-
Durability
-
-
Specific Gravity
3.80-4.156.30-6.39
1
7.18
👆🏻
Fracture
Uneven
Conchoidal
Cleavage
perfect along [010] and [100]
[001] good, [210] distinct
Mohs Hardness
3.5-43-3.5
2
10
👆🏻
Chemical Composition
Cu 5(SiO 3) 4(OH) 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
PbSO 4Michael OâDonoghue , Gems, Sixth edition (2006) More from other references