1 Physical Properties
1.1 Tenacity
1.2 Solubility
Not Available
Not Available
1.3 Durability
Not Available
Not Available
1.4 Specific Gravity
1.5 Fracture
Conchoidal, Uneven, ConchoidalArthur Thomas, Brittle
Gemstones of the world (2001)
1.6 Cleavage
Distinct on {10 1 1}, imperfect on {01 1 2}
001
1.7 Mohs Hardness
1.8 Chemical Composition
Ag 3SbS 3Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Microcline: KAlSi3O8 Oligoclase: (Na,Ca)Al1-2Si3-2O8