Tenacity
-
Brittle
Solubility
-
Soluble
Durability
-
-
Specific Gravity
5.053.25-3.35
1
7.18
👆🏻
Fracture
Uneven
Conchoidal, ConchoidalWalter Schumann
Cleavage
[001] perfect
Perfect in three directions
Mohs Hardness
3-3.55
2
10
👆🏻
Chemical Composition
Pb 26Ag 10Cu 24Cl 62(OH) 48 · 3H 2OWalter Schumann , Gemstones of the world (2001) More from other references
CuSiO 2(OH) 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references