Sunstone and Chalcedony Physical Properties
Tenacity
Not Available
  
Not Available
  
Solubility
Not Available
  
Soluble
  
Durability
Not Available
  
Not Available
  
Specific Gravity
2.62-2.65
  
2.55-2.70
  
Fracture
Gemstones of the world (2001)
  
Uneven, Splintery, Conchoidal, Uneven, Splintery, Conchoidal, UnevenWalter Schumann
  
Cleavage
001
  
Absent
  
Mohs Hardness
6
  
6.5-7
  
Chemical Composition
Microcline: KAlSi3O8 Oligoclase: (Na,Ca)Al1-2Si3-2O8
  
SiO2
  
Sunstone and Chalcedony Chemical Formula
While comparing Sunstone and Chalcedony 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 Sunstone and Chalcedony chemical formula.
- Chemical formula of Sunstone- Microcline: KAlSi3O8 Oligoclase: (Na,Ca)Al1-2Si3-2O8
- Chemical formula of Chalcedony- SiO2
Sunstone and Chalcedony Specific Gravity
Another important criteria for qualitative analysis of gemstones is Sunstone and Chalcedony Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Sunstone and Chalcedony Optical Properties during the identification of gemstone. Specific gravity of Sunstone is 2.55-2.70 whereas that of Chalcedony is 2.55-2.70.