Prehnite and Sanidine Physical Properties
Tenacity
Brittle
  
Not Available
  
Solubility
Not Available
  
Not Available
  
Durability
Not Available
  
Not Available
  
Specific Gravity
2.80-2.95
  
2.54-2.61
  
Fracture
Uneven, Yellow, White, UnevenWalter Schumann, Gemstones of the world (2001) More from other references, Brittle, Metallic
  
Uneven, Uneven, Gems, Sixth Edition (2006)
  
Cleavage
Distinct on [001]
  
{001} Perfect, {010} Good
  
Mohs Hardness
6-6.5
  
6
  
Chemical Composition
Ca2Al2Si3O12(OH)
  
KAlSi 3O 8Michael OâDonoghue , Gems, Sixth Edition (2006)
  
Prehnite and Sanidine Chemical Formula
While comparing Prehnite and Sanidine 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 Prehnite and Sanidine chemical formula.
- Chemical formula of Prehnite- Ca2Al2Si3O12(OH)
- Chemical formula of Sanidine- KAlSi 3O 8Michael OâDonoghue , Gems, Sixth Edition (2006)
Prehnite and Sanidine Specific Gravity
Another important criteria for qualitative analysis of gemstones is Prehnite and Sanidine Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Prehnite and Sanidine Optical Properties during the identification of gemstone. Specific gravity of Prehnite is 2.54-2.61 whereas that of Sanidine is 2.54-2.61.