Emerald and Cordierite Physical Properties
Tenacity
Not Available
  
Brittle
  
Solubility
Not Available
  
Not Available
  
Durability
Hard
  
Not Available
  
Specific Gravity
2.67-2.78
  
2.57-2.66
  
Fracture
Uneven, Uneven, ConchoidalWalter Schumann, Gemstones of the world (2001)
  
Subconchoidal, Conchoidal, Brittle
  
Cleavage
Imperfect on the [0001]
  
Fair on {100}, poor on {001} and {010}
  
Mohs Hardness
7.5-8
  
7-7.5
  
Chemical Composition
Be3Al2SiO6
  
Mg2Al4Si5O18
  
Emerald and Cordierite Chemical Formula
While comparing Emerald and Cordierite 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 Cordierite chemical formula.
- Chemical formula of Emerald- Be3Al2SiO6
- Chemical formula of Cordierite- Mg2Al4Si5O18
Emerald and Cordierite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Emerald and Cordierite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Emerald and Cordierite Optical Properties during the identification of gemstone. Specific gravity of Emerald is 2.57-2.66 whereas that of Cordierite is 2.57-2.66.
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