Tenacity
-
-
Solubility
-
-
Durability
-
-
Specific Gravity
2.56-2.603.63-3.79
1
7.18
👆🏻
Fracture
Uneven, ConchoidalWalter Schumann
Uneven, Conchoidal
Cleavage
2,1 basal ; 2,1 prismatic ; 3,1 pinacoidal
{110} Good
Mohs Hardness
6-6.53.5
2
10
👆🏻
Chemical Composition
Plagioclase Feldspar s: (Na,Ca)Al1-2Si3-2O8 Orthoclase Feldspar : KAlSi3O8
SrCO 3Walter Schumann , Gemstones of the world (2001) More from other references