Tenacity
-
-
Solubility
-
-
Durability
-
-
Specific Gravity
6.30-6.392.25-2.40
1
7.18
👆🏻
Fracture
Conchoidal
-
Cleavage
[001] good, [210] distinct
perfect on {010}; good on {100}
Mohs Hardness
3-3.55-5.5
2
10
👆🏻
Chemical Composition
PbSO 4Michael OâDonoghue , Gems, Sixth edition (2006) More from other references
NaCa 2Al 5Si 5O 20 · 6H 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references