Sunstone and Marcasite Physical Properties
Tenacity
Not Available
  
Not Available
  
Solubility
Not Available
  
Not Available
  
Durability
Not Available
  
Not Available
  
Specific Gravity
2.62-2.65
  
4.80-4.90
  
Fracture
Gemstones of the world (2001)
  
UnevenArthur Thomas, Gemstones (2009), UnevenArthur Thomas, Gemstones (2009), Uneven
  
Cleavage
001
  
{010} Indistinct
  
Mohs Hardness
6
  
6-6.5
  
Chemical Composition
Microcline: KAlSi3O8 Oligoclase: (Na,Ca)Al1-2Si3-2O8
  
FeS 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
  
Sunstone and Marcasite Chemical Formula
While comparing Sunstone and Marcasite 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 Marcasite chemical formula.
- Chemical formula of Sunstone- Microcline: KAlSi3O8 Oligoclase: (Na,Ca)Al1-2Si3-2O8
- Chemical formula of Marcasite- FeS 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Sunstone and Marcasite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Sunstone and Marcasite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Sunstone and Marcasite Optical Properties during the identification of gemstone. Specific gravity of Sunstone is 4.80-4.90 whereas that of Marcasite is 4.80-4.90.