Tenacity
Brittle
-
Solubility
Effervesces in cold
-
Durability
-
-
Specific Gravity
4-4.22.56-2.60
1
7.18
👆🏻
Fracture
Splintery
Uneven, ConchoidalWalter Schumann
Cleavage
Perfect on {100} and {010}
2,1 basal ; 2,1 prismatic ; 3,1 pinacoidal
Mohs Hardness
46-6.5
2
10
👆🏻
Chemical Composition
CuZn(CO3)(OH)2
Plagioclase Feldspar s: (Na,Ca)Al1-2Si3-2O8 Orthoclase Feldspar : KAlSi3O8