Esperite and Covellite Physical Properties
Tenacity
Not Available
Flexible
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
4.28-4.42
4.6-4.76
Fracture
Conchoidal, ConchoidalAnthony et al, Handbook of mineralogy (2001), Brittle, Metallic
Gemstones (2009), UnevenArthur Thomas, Gemstones (2009), Brittle, Metallic
Cleavage
Distinct on [010] and [100] poor on [101]
Perfect on {0001}
Mohs Hardness
5-5.5
Not Available
Chemical Composition
PbCa 3Zn 4(SiO 4) 4Anthony et al , Handbook of mineralogy (2001)
CuSMichael OâDonoghue , Gems, Sixth edition (2006) More from other references
Esperite and Covellite Chemical Formula
While comparing Esperite 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 Esperite and Covellite chemical formula.
- Chemical formula of Esperite- PbCa 3Zn 4(SiO 4) 4Anthony et al , Handbook of mineralogy (2001)
- Chemical formula of Covellite- CuSMichael OâDonoghue , Gems, Sixth edition (2006) More from other references
Esperite and Covellite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Esperite and Covellite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Esperite and Covellite Optical Properties during the identification of gemstone. Specific gravity of Esperite is 4.6-4.76 whereas that of Covellite is 4.6-4.76.