Tenacity
-
-
Solubility
-
Partially soluble in water
Durability
-
-
Specific Gravity
5.351.77
1
7.18
👆🏻
Fracture
Conchoidal
-
Cleavage
Perfect on {100}, imperfect on {001}
Perfect on {10 1 0}
Mohs Hardness
2.52-2.5
2
10
👆🏻
Chemical Composition
PbCu(SO 4)(OH) 2Michael OâDonoghue , Gems, Sixth Edition (2006)
Ca 6Al 2(SO 4) 3(OH) 12 26H 2OMichael OâDonoghue , Gems, Sixth Edition (2006)