1 Physical Properties
1.1 Tenacity
Not Available
Not Available
1.3 Solubility
Not Available
Not Available
1.5 Durability
Not Available
Not Available
1.9 Specific Gravity
3.20-3.502.56-2.60
1
7.18
1.18 Fracture
Not Available
Uneven, Uneven, ConchoidalWalter Schumann, Gemstones of the world (2001)
1.19 Cleavage
Not Available
2,1 basal ; 2,1 prismatic ; 3,1 pinacoidal
1.21 Mohs Hardness
1.25 Chemical Composition
Not Available
Plagioclase Feldspar s: (Na,Ca)Al1-2Si3-2O8 Orthoclase Feldspar : KAlSi3O8