Sanidine and Purpurite Physical Properties
Tenacity
Not Available
  
Not Available
  
Solubility
Not Available
  
Not Available
  
Durability
Not Available
  
Not Available
  
Specific Gravity
2.54-2.61
  
3.2-3.4
  
Fracture
Uneven, Uneven, Gems, Sixth Edition (2006)
  
Uneven, UnevenArthur Thomas, Gemstones (2009), Brittle
  
Cleavage
{001} Perfect, {010} Good
  
[100] [001] perfect
  
Mohs Hardness
6
  
4-4.5
  
Chemical Composition
KAlSi 3O 8Michael OâDonoghue , Gems, Sixth Edition (2006)
  
MnPO 4Walter Schumann , Gemstones of the world (2001) More from other references
  
Sanidine and Purpurite Chemical Formula
While comparing Sanidine and Purpurite 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 Sanidine and Purpurite chemical formula.
- Chemical formula of Sanidine- KAlSi 3O 8Michael OâDonoghue , Gems, Sixth Edition (2006)
- Chemical formula of Purpurite- MnPO 4Walter Schumann , Gemstones of the world (2001) More from other references
Sanidine and Purpurite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Sanidine and Purpurite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Sanidine and Purpurite Optical Properties during the identification of gemstone. Specific gravity of Sanidine is 3.2-3.4 whereas that of Purpurite is 3.2-3.4.