Sapphire and Spessartine Physical Properties
Tenacity
Not Available
  
Not Available
  
Solubility
insoluble
  
Not Available
  
Durability
Not Available
  
Not Available
  
Specific Gravity
3.95-4.03
  
4.12-4.18
  
Fracture
Uneven, Uneven, Gems, Sixth Edition (2006)
  
ConchoidalArthur Thomas, Conchoidal, Brittle
  
Cleavage
None, but may exhibit parting
  
{???} Distinct
  
Mohs Hardness
9
  
7-7.5
  
Chemical Composition
Al 2 O 3
  
Mn 3Al 2(SiO 4) 3Arthur Thomas , Gemstones (2009)
  
Sapphire and Spessartine Chemical Formula
While comparing Sapphire and Spessartine 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 Spessartine chemical formula.
- Chemical formula of Sapphire- Al 2 O 3
- Chemical formula of Spessartine- Mn 3Al 2(SiO 4) 3Arthur Thomas , Gemstones (2009)
Sapphire and Spessartine Specific Gravity
Another important criteria for qualitative analysis of gemstones is Sapphire and Spessartine Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Sapphire and Spessartine Optical Properties during the identification of gemstone. Specific gravity of Sapphire is 4.12-4.18 whereas that of Spessartine is 4.12-4.18.
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