1 Physical Properties
2.2 Tenacity
Not Available
Not Available
2.4 Solubility
Not Available
Not Available
2.6 Durability
Not Available
Not Available
2.7 Specific Gravity
Not Available2.56-2.60
1
7.18
2.8 Fracture
Not Available
Uneven, Uneven, ConchoidalWalter Schumann, Gemstones of the world (2001)
2.9 Cleavage
Not Available
2,1 basal ; 2,1 prismatic ; 3,1 pinacoidal
2.10 Mohs Hardness
2.13 Chemical Composition
Not Available
Plagioclase Feldspar s: (Na,Ca)Al1-2Si3-2O8 Orthoclase Feldspar : KAlSi3O8