Tenacity
Brittle
-
Solubility
-
-
Durability
-
-
Specific Gravity
2.00-2.452.56-2.60
1
7.18
👆🏻
Fracture
Sub-Conchoidal, Conchoidal
Uneven, ConchoidalWalter Schumann
Cleavage
none
2,1 basal ; 2,1 prismatic ; 3,1 pinacoidal
Mohs Hardness
2-46-6.5
2
10
👆🏻
Chemical Composition
Cu2H2Si2O5(OH)4
Plagioclase Feldspar s: (Na,Ca)Al1-2Si3-2O8 Orthoclase Feldspar : KAlSi3O8