Esperite and Cuprite Physical Properties
Tenacity
Not Available
Brittle
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
4.28-4.42
5.85-6.15
Fracture
Conchoidal, ConchoidalAnthony et al, Handbook of mineralogy (2001), Brittle, Metallic
Conchoidal, Metallic, UnevenArthur Thomas, Gemstones (2009), Brittle, Conchoidal
Cleavage
Distinct on [010] and [100] poor on [101]
Fair in four directions forming octahedrons
Mohs Hardness
5-5.5
3.5-4
Chemical Composition
PbCa 3Zn 4(SiO 4) 4Anthony et al , Handbook of mineralogy (2001)
Cu 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Esperite and Cuprite Chemical Formula
While comparing Esperite and Cuprite 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 Cuprite chemical formula.
- Chemical formula of Esperite- PbCa 3Zn 4(SiO 4) 4Anthony et al , Handbook of mineralogy (2001)
- Chemical formula of Cuprite- Cu 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Esperite and Cuprite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Esperite and Cuprite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Esperite and Cuprite Optical Properties during the identification of gemstone. Specific gravity of Esperite is 5.85-6.15 whereas that of Cuprite is 5.85-6.15.