Esperite and Prase Physical Properties
Tenacity
Not Available
  
Not Available
  
Solubility
Not Available
  
Not Available
  
Durability
Not Available
  
Not Available
  
Specific Gravity
4.28-4.42
  
2.64-2.69
  
Fracture
Conchoidal, ConchoidalAnthony et al, Handbook of mineralogy (2001), Brittle, Metallic
  
Gems, Sixth Edition (2006), Gems, Sixth Edition (2006)
  
Cleavage
Distinct on [010] and [100] poor on [101]
  
Not Available
  
Mohs Hardness
5-5.5
  
7
  
Chemical Composition
PbCa 3Zn 4(SiO 4) 4Anthony et al , Handbook of mineralogy (2001)
  
SiO 2Michael OâDonoghue , Gems, Sixth Edition (2006)
  
Esperite and Prase Chemical Formula
While comparing Esperite and Prase 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 Prase chemical formula.
- Chemical formula of Esperite- PbCa 3Zn 4(SiO 4) 4Anthony et al , Handbook of mineralogy (2001)
- Chemical formula of Prase- SiO 2Michael OâDonoghue , Gems, Sixth Edition (2006)
Esperite and Prase Specific Gravity
Another important criteria for qualitative analysis of gemstones is Esperite and Prase Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Esperite and Prase Optical Properties during the identification of gemstone. Specific gravity of Esperite is 2.64-2.69 whereas that of Prase is 2.64-2.69.