Schorl and Jasper Physical Properties
Tenacity
Not Available
  
Not Available
  
Solubility
Not Available
  
Not Available
  
Durability
Not Available
  
Not Available
  
Specific Gravity
3.18-3.22
  
2.58-2.91
  
Fracture
Uneven, Uneven, ConchoidalAnthony et al, Handbook of mineralogy (2001), Brittle, Conchoidal
  
Conchoidal, Conchoidal, Gemstones of the world (2001)
  
Cleavage
{1011} Indistinct
  
Indiscernible
  
Mohs Hardness
Not Available
  
6.5-7
  
Chemical Composition
Na(Fe2+3)Al 6(Si 6O 18)(BO 3) 3(OH) 3(OH)Gemdat.org , Management Team (2012)
  
SiO2
  
Schorl and Jasper Chemical Formula
While comparing Schorl and Jasper 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 Schorl and Jasper chemical formula.
- Chemical formula of Schorl- Na(Fe2+3)Al 6(Si 6O 18)(BO 3) 3(OH) 3(OH)Gemdat.org , Management Team (2012)
- Chemical formula of Jasper- SiO2
Schorl and Jasper Specific Gravity
Another important criteria for qualitative analysis of gemstones is Schorl and Jasper Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Schorl and Jasper Optical Properties during the identification of gemstone. Specific gravity of Schorl is 2.58-2.91 whereas that of Jasper is 2.58-2.91.