Oligoclase and Covellite Physical Properties
Tenacity
Not Available
Flexible
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
2.62-2.67
4.6-4.76
Fracture
Gems, Sixth Edition (2006), Gems, Sixth Edition (2006), Uneven
Gemstones (2009), UnevenArthur Thomas, Gemstones (2009), Brittle, Metallic
Cleavage
From the Greek, oligos and kasein, little cleavage.
Perfect on {0001}
Mohs Hardness
6-6.5
Not Available
Chemical Composition
Na(90-70%)Ca(10-30%)(Al,Si)AlSi 2O 8Michael OâDonoghue , Gems, Sixth Edition (2006)
CuSMichael OâDonoghue , Gems, Sixth edition (2006) More from other references
Oligoclase and Covellite Chemical Formula
While comparing Oligoclase and Covellite physical properties, the important data you should know is its chemical composition. Since chemical formula defines the molecular structure of the crystal, most of the physical properties like color, tenacity, solubility are governed by Oligoclase and Covellite chemical formula.
- Chemical formula of Oligoclase- Na(90-70%)Ca(10-30%)(Al,Si)AlSi 2O 8Michael OâDonoghue , Gems, Sixth Edition (2006)
- Chemical formula of Covellite- CuSMichael OâDonoghue , Gems, Sixth edition (2006) More from other references
Oligoclase and Covellite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Oligoclase and Covellite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Oligoclase and Covellite Optical Properties during the identification of gemstone. Specific gravity of Oligoclase is 4.6-4.76 whereas that of Covellite is 4.6-4.76.