Sapphire and Childrenite Physical Properties
Tenacity
Not Available
  
Not Available
  
Solubility
insoluble
  
Soluble
  
Durability
Not Available
  
Not Available
  
Specific Gravity
3.95-4.03
  
3.06-3.25
  
Fracture
Uneven, Uneven, Gems, Sixth Edition (2006)
  
Sub-Conchoidal, ConchoidalArthur Thomas, Conchoidal, Uneven
  
Cleavage
None, but may exhibit parting
  
Poor/indistinct on {100}
  
Mohs Hardness
9
  
4.5-5
  
Chemical Composition
Al 2 O 3
  
(Fe,Mn)AlPO 4(OH) 2 -H 2OArthur Thomas , Gemstones (2009)
  
Sapphire and Childrenite Chemical Formula
While comparing Sapphire 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 Sapphire and Childrenite chemical formula.
- Chemical formula of Sapphire- Al 2 O 3
- Chemical formula of Childrenite- (Fe,Mn)AlPO 4(OH) 2 -H 2OArthur Thomas , Gemstones (2009)
Sapphire and Childrenite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Sapphire and Childrenite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Sapphire and Childrenite Optical Properties during the identification of gemstone. Specific gravity of Sapphire is 3.06-3.25 whereas that of Childrenite is 3.06-3.25.
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