Tenacity
-
Brittle
Solubility
-
Soluble
Durability
-
-
Specific Gravity
2.56-2.602.20-2.23
1
7.18
👆🏻
Fracture
Uneven, ConchoidalWalter Schumann
Irregular/uneven, Uneven
Cleavage
2,1 basal ; 2,1 prismatic ; 3,1 pinacoidal
Perfect on {110} and {1 1 0}
Mohs Hardness
6-6.55-5.5
2
10
👆🏻
Chemical Composition
Plagioclase Feldspar s: (Na,Ca)Al1-2Si3-2O8 Orthoclase Feldspar : KAlSi3O8
CaAl 2Si 3O 10 · 3H 2OUlrich Henn and Claudio C.