Tenacity
-
-
Solubility
-
-
Durability
-
-
Specific Gravity
2.725.35
1
7.18
👆🏻
Fracture
-
Conchoidal
Cleavage
{110} Perfect, {010} Perfect
Perfect on {100}, imperfect on {001}
Mohs Hardness
5-62.5
2
10
👆🏻
Chemical Composition
Na 2ZrSi 3O 9 · 2H 2OMichael OâDonoghue , Gems, Sixth Edition (2006)
PbCu(SO 4)(OH) 2Michael OâDonoghue , Gems, Sixth Edition (2006)