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
3.23-3.262.62-2.65
1
7.18
1.5 Fracture
Conchoidal, ConchoidalAnthony et al, Handbook of mineralogy (2001), Conchoidal, Brittle
Gemstones of the world (2001)
1.6 Cleavage
Perfect on {010} imperfect on {100}
001
1.7 Mohs Hardness
1.8 Chemical Composition
Mg 2SiO 4Michael OâDonoghue , Gems, Sixth Edition (2006)
Microcline: KAlSi3O8 Oligoclase: (Na,Ca)Al1-2Si3-2O8