Emerald and Covellite Physical Properties
Tenacity
Not Available
Flexible
Solubility
Not Available
Not Available
Durability
Hard
Not Available
Specific Gravity
2.67-2.78
4.6-4.76
Fracture
Uneven, Uneven, ConchoidalWalter Schumann, Gemstones of the world (2001)
Gemstones (2009), UnevenArthur Thomas, Gemstones (2009), Brittle, Metallic
Cleavage
Imperfect on the [0001]
Perfect on {0001}
Mohs Hardness
7.5-8
Not Available
Chemical Composition
Be3Al2SiO6
CuSMichael OâDonoghue , Gems, Sixth edition (2006) More from other references
Emerald and Covellite Chemical Formula
While comparing Emerald 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 Emerald and Covellite chemical formula.
- Chemical formula of Emerald- Be3Al2SiO6
- Chemical formula of Covellite- CuSMichael OâDonoghue , Gems, Sixth edition (2006) More from other references
Emerald and Covellite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Emerald and Covellite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Emerald and Covellite Optical Properties during the identification of gemstone. Specific gravity of Emerald is 4.6-4.76 whereas that of Covellite is 4.6-4.76.
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