Esperite and Elbaite Physical Properties
Tenacity
Not Available
  
Not Available
  
Solubility
Not Available
  
Not Available
  
Durability
Not Available
  
Not Available
  
Specific Gravity
4.28-4.42
  
2.90-3.10
  
Fracture
Conchoidal, ConchoidalAnthony et al, Handbook of mineralogy (2001), Brittle, Metallic
  
Uneven, Conchoidal, Brittle, Uneven, ConchoidalAnthony et al, Handbook of mineralogy (2001), Conchoidal, Brittle
  
Cleavage
Distinct on [010] and [100] poor on [101]
  
Poor/indistinct on {1120} and {1011}
  
Mohs Hardness
5-5.5
  
7
  
Chemical Composition
PbCa 3Zn 4(SiO 4) 4Anthony et al , Handbook of mineralogy (2001)
  
Na(Li 1.5Al 1.5)Al 6(Si 6O 18)(BO 3) 3(OH) 3(OH)Gemdat.org , Management Team (2012) More from other references
  
Esperite and Elbaite Chemical Formula
While comparing Esperite and Elbaite 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 Elbaite chemical formula.
- Chemical formula of Esperite- PbCa 3Zn 4(SiO 4) 4Anthony et al , Handbook of mineralogy (2001)
- Chemical formula of Elbaite- Na(Li 1.5Al 1.5)Al 6(Si 6O 18)(BO 3) 3(OH) 3(OH)Gemdat.org , Management Team (2012) More from other references
Esperite and Elbaite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Esperite and Elbaite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Esperite and Elbaite Optical Properties during the identification of gemstone. Specific gravity of Esperite is 2.90-3.10 whereas that of Elbaite is 2.90-3.10.