Emerald and Taaffeite Physical Properties
Tenacity
Not Available
  
Not Available
  
Solubility
Not Available
  
Not Available
  
Durability
Hard
  
Not Available
  
Specific Gravity
2.67-2.78
  
3.60-3.61
  
Fracture
Uneven, Uneven, ConchoidalWalter Schumann, Gemstones of the world (2001)
  
Conchoidal
  
Cleavage
Imperfect on the [0001]
  
Imperfect/fair/absent
  
Mohs Hardness
7.5-8
  
8-8.5
  
Chemical Composition
Be3Al2SiO6
  
Mg 3Al 8BeO 16Walter Schumann , Gemstones of the world (2001) More from other references
  
Emerald and Taaffeite Chemical Formula
While comparing Emerald and Taaffeite 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 Emerald and Taaffeite chemical formula.
- Chemical formula of Emerald- Be3Al2SiO6
- Chemical formula of Taaffeite- Mg 3Al 8BeO 16Walter Schumann , Gemstones of the world (2001) More from other references
Emerald and Taaffeite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Emerald and Taaffeite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Emerald and Taaffeite Optical Properties during the identification of gemstone. Specific gravity of Emerald is 3.60-3.61 whereas that of Taaffeite is 3.60-3.61.
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