Carnelian and Andesine Physical Properties
Tenacity
Not Available
  
Brittle
  
Solubility
Not Available
  
Not Available
  
Durability
Not Available
  
Not Available
  
Specific Gravity
2.58-2.64
  
2.65-2.69
  
Fracture
Uneven, Splintery, Conchoidal, UnevenWalter Schumann, Gemstones of the world (2001)
  
Uneven, Uneven, Conchoidal, Uneven, Gems, Sixth Edition (2006)
  
Cleavage
Absent
  
Perfect on {001}, good on {010}
  
Mohs Hardness
6.5-7
  
6-6.5
  
Chemical Composition
SiO2
  
(Na,Ca)Al1-2Si3-2O8
  
Carnelian and Andesine Chemical Formula
While comparing Carnelian and Andesine 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 Carnelian and Andesine chemical formula.
- Chemical formula of Carnelian- SiO2
- Chemical formula of Andesine- (Na,Ca)Al1-2Si3-2O8
Carnelian and Andesine Specific Gravity
Another important criteria for qualitative analysis of gemstones is Carnelian and Andesine Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Carnelian and Andesine Optical Properties during the identification of gemstone. Specific gravity of Carnelian is 2.65-2.69 whereas that of Andesine is 2.65-2.69.