Sardonyx and Colemanite Physical Properties
Tenacity
Not Available
  
Not Available
  
Solubility
Not Available
  
Not Available
  
Durability
Not Available
  
Not Available
  
Specific Gravity
2.55-2.70
  
2.40-2.42
  
Fracture
Not Available
  
Gemstones (2009), UnevenArthur Thomas, Gemstones (2009), Brittle, Metallic
  
Cleavage
Not Available
  
{010} Perfect, {001} Distinct
  
Mohs Hardness
6.5-7
  
4.5
  
Chemical Composition
SiO 2Ulrich Henn and Claudio C.
  
Ca 2B 6O 11 · 5H 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
  
Sardonyx and Colemanite Chemical Formula
While comparing Sardonyx and Colemanite 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 Sardonyx and Colemanite chemical formula.
- Chemical formula of Sardonyx- SiO 2Ulrich Henn and Claudio C.
- Chemical formula of Colemanite- Ca 2B 6O 11 · 5H 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Sardonyx and Colemanite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Sardonyx and Colemanite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Sardonyx and Colemanite Optical Properties during the identification of gemstone. Specific gravity of Sardonyx is 2.40-2.42 whereas that of Colemanite is 2.40-2.42.