Covellite and Schorl Physical Properties
Tenacity
Flexible
Not Available
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
4.6-4.76
3.18-3.22
Fracture
Gemstones (2009), UnevenArthur Thomas, Gemstones (2009), Brittle, Metallic
Uneven, Uneven, ConchoidalAnthony et al, Handbook of mineralogy (2001), Brittle, Conchoidal
Cleavage
Perfect on {0001}
{1011} Indistinct
Mohs Hardness
Not Available
Not Available
Chemical Composition
CuSMichael OâDonoghue , Gems, Sixth edition (2006) More from other references
Na(Fe2+3)Al 6(Si 6O 18)(BO 3) 3(OH) 3(OH)Gemdat.org , Management Team (2012)
Covellite and Schorl Chemical Formula
While comparing Covellite and Schorl 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 Covellite and Schorl chemical formula.
- Chemical formula of Covellite- CuSMichael OâDonoghue , Gems, Sixth edition (2006) More from other references
- Chemical formula of Schorl- Na(Fe2+3)Al 6(Si 6O 18)(BO 3) 3(OH) 3(OH)Gemdat.org , Management Team (2012)
Covellite and Schorl Specific Gravity
Another important criteria for qualitative analysis of gemstones is Covellite and Schorl Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Covellite and Schorl Optical Properties during the identification of gemstone. Specific gravity of Covellite is 3.18-3.22 whereas that of Schorl is 3.18-3.22.