1 Physical Properties
1.1 Tenacity
Not Available
Not Available
1.2 Solubility
Not Available
Not Available
1.3 Durability
Not Available
Not Available
1.4 Specific Gravity
2.9 Fracture
Uneven, Uneven, ConchoidalWalter Schumann, Gemstones of the world (2001)
Uneven, Uneven, ConchoidalAnthony et al, Handbook of mineralogy (2001)
2.11 Cleavage
2,1 basal ; 2,1 prismatic ; 3,1 pinacoidal
Not Available
2.12 Mohs Hardness
3.5 Chemical Composition
Plagioclase Feldspar s: (Na,Ca)Al1-2Si3-2O8 Orthoclase Feldspar : KAlSi3O8
Ca 2 MgAl 2 BSi 4 O 15 OH Gemdat.org, Management Team (2012)