Chrysoberyl and Topaz Physical Properties
Tenacity
Brittle
  
Not Available
  
Solubility
Not Available
  
Not Available
  
Durability
Not Available
  
Not Available
  
Specific Gravity
3.69-3.81
  
3.49-3.57
  
Fracture
Uneven, Conchoidal to uneven, Brittle, Metallic, Uneven, ConchoidalWalter Schumann, Brittle, Metallic
  
Subconchoidal, Uneven, ConchoidalArthur Thomas, Gemstones (2009), Brittle
  
Cleavage
Distinct on {110}, imperfect on {010}, poor on {001}
  
[001] Perfect
  
Mohs Hardness
8.5
  
8
  
Chemical Composition
BeAl 2 O 4
  
Al2SiO4(F,OH)2
  
Chrysoberyl and Topaz Chemical Formula
While comparing Chrysoberyl 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 Chrysoberyl and Topaz chemical formula.
- Chemical formula of Chrysoberyl- BeAl 2 O 4
- Chemical formula of Topaz- Al2SiO4(F,OH)2
Chrysoberyl and Topaz Specific Gravity
Another important criteria for qualitative analysis of gemstones is Chrysoberyl and Topaz Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Chrysoberyl and Topaz Optical Properties during the identification of gemstone. Specific gravity of Chrysoberyl is 3.49-3.57 whereas that of Topaz is 3.49-3.57.