1 Physical Properties
1.1 Tenacity
1.2 Solubility
1.3 Durability
Not Available
Not Available
1.5 Specific Gravity
1.7 Fracture
Irregular/uneven
Uneven, Uneven, ConchoidalWalter Schumann, Gemstones of the world (2001)
1.9 Cleavage
Perfect cleavage parallel to base and prism faces: {001} Perfect, {210} Perfect, {010} Imperfect
2,1 basal ; 2,1 prismatic ; 3,1 pinacoidal
1.10 Mohs Hardness
1.13 Chemical Composition
Not Available
Plagioclase Feldspar s: (Na,Ca)Al1-2Si3-2O8 Orthoclase Feldspar : KAlSi3O8