Tenacity
-
-
Solubility
-
-
Durability
-
-
Specific Gravity
2.56-2.603.00
1
7.18
👆🏻
Fracture
Uneven, ConchoidalWalter Schumann
Uneven, Splintery
Cleavage
2,1 basal ; 2,1 prismatic ; 3,1 pinacoidal
perfect along {110}.
Mohs Hardness
6-6.55-6
2
10
👆🏻
Chemical Composition
Plagioclase Feldspar s: (Na,Ca)Al1-2Si3-2O8 Orthoclase Feldspar : KAlSi3O8
Ca 2(Mg,Fe) 5Si 8O 22(OH) 2Ulrich Henn and Claudio C.