Tenacity
-
-
Solubility
-
-
Durability
-
-
Specific Gravity
5.052.45-2.58
1
7.18
👆🏻
Fracture
Uneven
Conchoidal
Cleavage
[001] perfect
None
Mohs Hardness
3-3.53-3.5
2
10
👆🏻
Chemical Composition
Pb 26Ag 10Cu 24Cl 62(OH) 48 · 3H 2OWalter Schumann , Gemstones of the world (2001) More from other references
Ca 2B 5SiO 9(OH) 5Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references