Cat s Eye and Topaz Physical Properties
Tenacity
Not Available
  
Not Available
  
Solubility
Not Available
  
Not Available
  
Durability
Not Available
  
Not Available
  
Specific Gravity
3.5-3.8
  
3.49-3.57
  
Fracture
Not Available
  
Subconchoidal, Uneven, ConchoidalArthur Thomas, Gemstones (2009), Brittle
  
Cleavage
1,1 ; 3,2
  
[001] Perfect
  
Mohs Hardness
8.5
  
8
  
Chemical Composition
BeAl 2 O 4
  
Al2SiO4(F,OH)2
  
Cat s Eye and Topaz Chemical Formula
While comparing Cat s Eye and Topaz 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 Cat s Eye and Topaz chemical formula.
- Chemical formula of Cat s Eye- BeAl 2 O 4
- Chemical formula of Topaz- Al2SiO4(F,OH)2
Cat s Eye and Topaz Specific Gravity
Another important criteria for qualitative analysis of gemstones is Cat s Eye and Topaz Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Cat s Eye and Topaz Optical Properties during the identification of gemstone. Specific gravity of Cat s Eye is 3.49-3.57 whereas that of Topaz is 3.49-3.57.