Tenacity
-
-
Solubility
-
-
Durability
-
-
Specific Gravity
5.052.56-2.60
1
7.18
👆🏻
Fracture
Uneven
Uneven, ConchoidalWalter Schumann
Cleavage
[001] perfect
2,1 basal ; 2,1 prismatic ; 3,1 pinacoidal
Mohs Hardness
3-3.56-6.5
2
10
👆🏻
Chemical Composition
Pb 26Ag 10Cu 24Cl 62(OH) 48 · 3H 2OWalter Schumann , Gemstones of the world (2001) More from other references
Plagioclase Feldspar s: (Na,Ca)Al1-2Si3-2O8 Orthoclase Feldspar : KAlSi3O8