Emerald and Grandidierite Physical Properties
Tenacity
Not Available
  
Not Available
  
Solubility
Not Available
  
Not Available
  
Durability
Hard
  
Not Available
  
Specific Gravity
2.67-2.78
  
2.85-3.00
  
Fracture
Uneven, Uneven, ConchoidalWalter Schumann, Gemstones of the world (2001)
  
Brittle, UnevenArthur Thomas, Gemstones (2009), Brittle, Uneven
  
Cleavage
Imperfect on the [0001]
  
Perfect
  
Mohs Hardness
7.5-8
  
7.5
  
Chemical Composition
Be3Al2SiO6
  
(Mg,Fe)Al 3(BO 4)(SiO 4)OUlrich Henn and Claudio C.
  
Emerald and Grandidierite Chemical Formula
While comparing Emerald and Grandidierite 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 Grandidierite chemical formula.
- Chemical formula of Emerald- Be3Al2SiO6
- Chemical formula of Grandidierite- (Mg,Fe)Al 3(BO 4)(SiO 4)OUlrich Henn and Claudio C.
Emerald and Grandidierite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Emerald and Grandidierite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Emerald and Grandidierite Optical Properties during the identification of gemstone. Specific gravity of Emerald is 2.85-3.00 whereas that of Grandidierite is 2.85-3.00.
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