Sulfur and Esperite Physical Properties
Tenacity
Not Available
  
Not Available
  
Solubility
insoluble
  
Not Available
  
Durability
Not Available
  
Not Available
  
Specific Gravity
Not Available
  
4.28-4.42
  
Fracture
(e.g. graphite).
  
Conchoidal, ConchoidalAnthony et al, Handbook of mineralogy (2001), Brittle, Metallic
  
Cleavage
{???} Imperfect, {???} Imperfect
  
Distinct on [010] and [100] poor on [101]
  
Mohs Hardness
Not Available
  
5-5.5
  
Chemical Composition
Not Available
  
PbCa 3Zn 4(SiO 4) 4Anthony et al , Handbook of mineralogy (2001)
  
Sulfur and Esperite Chemical Formula
While comparing Sulfur and Esperite 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 Sulfur and Esperite chemical formula.
>- Chemical formula of Esperite- PbCa 3Zn 4(SiO 4) 4Anthony et al , Handbook of mineralogy (2001)
Sulfur and Esperite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Sulfur and Esperite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Sulfur and Esperite Optical Properties during the identification of gemstone. Specific gravity of Sulfur is 4.28-4.42 whereas that of Esperite is 4.28-4.42.