Emerald and Childrenite Physical Properties
Tenacity
Not Available
  
Not Available
  
Solubility
Not Available
  
Soluble
  
Durability
Hard
  
Not Available
  
Specific Gravity
2.67-2.78
  
3.06-3.25
  
Fracture
Uneven, Uneven, ConchoidalWalter Schumann, Gemstones of the world (2001)
  
Sub-Conchoidal, ConchoidalArthur Thomas, Conchoidal, Uneven
  
Cleavage
Imperfect on the [0001]
  
Poor/indistinct on {100}
  
Mohs Hardness
7.5-8
  
4.5-5
  
Chemical Composition
Be3Al2SiO6
  
(Fe,Mn)AlPO 4(OH) 2 -H 2OArthur Thomas , Gemstones (2009)
  
Emerald and Childrenite Chemical Formula
While comparing Emerald and Childrenite 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 Childrenite chemical formula.
- Chemical formula of Emerald- Be3Al2SiO6
- Chemical formula of Childrenite- (Fe,Mn)AlPO 4(OH) 2 -H 2OArthur Thomas , Gemstones (2009)
Emerald and Childrenite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Emerald and Childrenite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Emerald and Childrenite Optical Properties during the identification of gemstone. Specific gravity of Emerald is 3.06-3.25 whereas that of Childrenite is 3.06-3.25.
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