Brazilianite and Covellite Physical Properties
Tenacity
Not Available
Flexible
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
2.98-2.99
4.6-4.76
Fracture
Conchoidal, Gems
Gemstones (2009), UnevenArthur Thomas, Gemstones (2009), Brittle, Metallic
Cleavage
(010) Distinct to good
Perfect on {0001}
Mohs Hardness
5.5
Not Available
Chemical Composition
NaAl 3(PO 4) 2(OH) 4Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
CuSMichael OâDonoghue , Gems, Sixth edition (2006) More from other references
Brazilianite and Covellite Chemical Formula
While comparing Brazilianite 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 Brazilianite and Covellite chemical formula.
- Chemical formula of Brazilianite- NaAl 3(PO 4) 2(OH) 4Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
- Chemical formula of Covellite- CuSMichael OâDonoghue , Gems, Sixth edition (2006) More from other references
Brazilianite and Covellite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Brazilianite and Covellite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Brazilianite and Covellite Optical Properties during the identification of gemstone. Specific gravity of Brazilianite is 4.6-4.76 whereas that of Covellite is 4.6-4.76.