Almandine and Covellite Physical Properties
Tenacity
Not Available
Flexible
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
3.95-4.30
4.6-4.76
Fracture
Conchoidal, Brittle, Conchoidal, Brittle, Conchoidal, ConchoidalArthur Thomas, Gemstones (2009), Brittle, Conchoidal
Gemstones (2009), UnevenArthur Thomas, Gemstones (2009), Brittle, Metallic
Cleavage
none
Perfect on {0001}
Mohs Hardness
7-7.5
Not Available
Chemical Composition
Fe 3Al 2(SiO 4) 3Arthur Thomas , Gemstones (2009)
CuSMichael OâDonoghue , Gems, Sixth edition (2006) More from other references
Almandine and Covellite Chemical Formula
While comparing Almandine 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 Almandine and Covellite chemical formula.
- Chemical formula of Almandine- Fe 3Al 2(SiO 4) 3Arthur Thomas , Gemstones (2009)
- Chemical formula of Covellite- CuSMichael OâDonoghue , Gems, Sixth edition (2006) More from other references
Almandine and Covellite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Almandine and Covellite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Almandine and Covellite Optical Properties during the identification of gemstone. Specific gravity of Almandine is 4.6-4.76 whereas that of Covellite is 4.6-4.76.