Euclase and Sillimanite Physical Properties
Tenacity
Not Available
  
Tough
  
Solubility
Not Available
  
Not Available
  
Durability
Not Available
  
Not Available
  
Specific Gravity
3.08-3.12
  
3.20-3.26
  
Fracture
ConchoidalWalter Schumann, Gemstones of the world (2001), ConchoidalWalter Schumann, Gemstones of the world (2001), Brittle, Metallic
  
Splintery
  
Cleavage
{010} Perfect
  
{010} perfect
  
Mohs Hardness
7.5
  
6-7.5
  
Chemical Composition
BeAlSiO 4(OH)Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
  
Al 2SiO 5Michael OâDonoghue , Gems, Sixth Edition (2006)
  
Euclase and Sillimanite Chemical Formula
While comparing Euclase and Sillimanite 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 Euclase and Sillimanite chemical formula.
- Chemical formula of Euclase- BeAlSiO 4(OH)Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
- Chemical formula of Sillimanite- Al 2SiO 5Michael OâDonoghue , Gems, Sixth Edition (2006)
Euclase and Sillimanite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Euclase and Sillimanite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Euclase and Sillimanite Optical Properties during the identification of gemstone. Specific gravity of Euclase is 3.20-3.26 whereas that of Sillimanite is 3.20-3.26.