Tourmaline and Covellite Physical Properties
Tenacity
Not Available
Flexible
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
2.85-3.35
4.6-4.76
Fracture
Uneven, Conchoidal, ConchoidalArthur Thomas, Gemstones (2009)
Gemstones (2009), UnevenArthur Thomas, Gemstones (2009), Brittle, Metallic
Cleavage
Indistinct
Perfect on {0001}
Mohs Hardness
7-7.5
Not Available
Chemical Composition
Tourmaline is a series of several different minerals with unique chemical formulas. See The chemical formula of Tourmaline for details.
CuSMichael OâDonoghue , Gems, Sixth edition (2006) More from other references
Tourmaline and Covellite Chemical Formula
While comparing Tourmaline 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 Tourmaline and Covellite chemical formula.
- Chemical formula of Tourmaline- Tourmaline is a series of several different minerals with unique chemical formulas. See The chemical formula of Tourmaline for details.
- Chemical formula of Covellite- CuSMichael OâDonoghue , Gems, Sixth edition (2006) More from other references
Tourmaline and Covellite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Tourmaline and Covellite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Tourmaline and Covellite Optical Properties during the identification of gemstone. Specific gravity of Tourmaline is 4.6-4.76 whereas that of Covellite is 4.6-4.76.