Tenacity
-
Brittle
Solubility
-
-
Durability
-
-
Specific Gravity
2.56-2.601.79
1
7.18
👆🏻
Fracture
Uneven, ConchoidalWalter Schumann
Irregular/uneven
Cleavage
2,1 basal ; 2,1 prismatic ; 3,1 pinacoidal
Perfect on {10bar10}
Mohs Hardness
6-6.52.5
2
10
👆🏻
Chemical Composition
Plagioclase Feldspar s: (Na,Ca)Al1-2Si3-2O8 Orthoclase Feldspar : KAlSi3O8
Ca6(Al,Si)2(SO4)2B(OH)4(OH,O)12•26(H2O)