Emerald and Apophyllite Physical Properties
Tenacity
Not Available
  
Not Available
  
Solubility
Not Available
  
Not Available
  
Durability
Hard
  
Not Available
  
Specific Gravity
2.67-2.78
  
2.30-2.50
  
Fracture
Uneven, Uneven, ConchoidalWalter Schumann, Gemstones of the world (2001)
  
Uneven, UnevenArthur Thomas, Gemstones (2009)
  
Cleavage
Imperfect on the [0001]
  
Perfect on (001)
  
Mohs Hardness
7.5-8
  
4.5-5
  
Chemical Composition
Be3Al2SiO6
  
KCa 4Si 8O 20(F,OH) · 8H 2OUlrich Henn and Claudio C.
  
Emerald and Apophyllite Chemical Formula
While comparing Emerald and Apophyllite 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 Apophyllite chemical formula.
- Chemical formula of Emerald- Be3Al2SiO6
- Chemical formula of Apophyllite- KCa 4Si 8O 20(F,OH) · 8H 2OUlrich Henn and Claudio C.
Emerald and Apophyllite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Emerald and Apophyllite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Emerald and Apophyllite Optical Properties during the identification of gemstone. Specific gravity of Emerald is 2.30-2.50 whereas that of Apophyllite is 2.30-2.50.
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