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
2.56-2.602.58-2.80
1
7.18
2.4 Fracture
Uneven, Uneven, ConchoidalWalter Schumann, Gemstones of the world (2001)
Conchoidal, Brittle, Metallic, Conchoidal, Handbook of mineralogy (2001)
2.5 Cleavage
2,1 basal ; 2,1 prismatic ; 3,1 pinacoidal
{001} Good
2.6 Mohs Hardness
2.9 Chemical Composition
Plagioclase Feldspar s: (Na,Ca)Al1-2Si3-2O8 Orthoclase Feldspar : KAlSi3O8
(Mg,Fe2+ ) 3Si 2O 5(OH) 4Anthony et al , Handbook of mineralogy (2001)