Topaz and Euclase Physical Properties
Tenacity
Not Available
  
Not Available
  
Solubility
Not Available
  
Not Available
  
Durability
Not Available
  
Not Available
  
Specific Gravity
3.49-3.57
  
3.08-3.12
  
Fracture
Subconchoidal, Uneven, ConchoidalArthur Thomas, Gemstones (2009), Brittle
  
ConchoidalWalter Schumann, Gemstones of the world (2001), ConchoidalWalter Schumann, Gemstones of the world (2001), Brittle, Metallic
  
Cleavage
[001] Perfect
  
{010} Perfect
  
Mohs Hardness
8
  
7.5
  
Chemical Composition
Al2SiO4(F,OH)2
  
BeAlSiO 4(OH)Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
  
Topaz and Euclase Chemical Formula
While comparing Topaz and Euclase 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 Topaz and Euclase chemical formula.
- Chemical formula of Topaz- Al2SiO4(F,OH)2
- Chemical formula of Euclase- BeAlSiO 4(OH)Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Topaz and Euclase Specific Gravity
Another important criteria for qualitative analysis of gemstones is Topaz and Euclase Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Topaz and Euclase Optical Properties during the identification of gemstone. Specific gravity of Topaz is 3.08-3.12 whereas that of Euclase is 3.08-3.12.