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Sapphire
Sapphire

Foitite
Foitite



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Sapphire
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Foitite

Sapphire and Foitite Physical Properties

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1 Physical Properties
1.1 Tenacity
Not Available
Not Available
1.2 Solubility
insoluble
Not Available
1.3 Durability
Not Available
Not Available
1.4 Specific Gravity
3.95-4.033.17
Amber
1 7.18
1.5 Fracture
Uneven, Uneven, Gems, Sixth Edition (2006)
Handbook of mineralogy (2001)
1.6 Cleavage
None, but may exhibit parting
None
1.7 Mohs Hardness
97
Amber
2 10
1.8 Chemical Composition
Al 2 O 3
Na x[Fe2+2(Al,Fe3+ )]Al 6(BO 3) 3Si 6O 18(OH) 4Anthony et al , Handbook of mineralogy (2001)

Sapphire and Foitite Chemical Formula

While comparing Sapphire and Foitite 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 Foitite chemical formula.

  • Chemical formula of Sapphire- Al 2 O 3
  • Chemical formula of Foitite- Na x[Fe2+2(Al,Fe3+ )]Al 6(BO 3) 3Si 6O 18(OH) 4Anthony et al , Handbook of mineralogy (2001)

Sapphire and Foitite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Sapphire and Foitite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Sapphire and Foitite Optical Properties during the identification of gemstone. Specific gravity of Sapphire is 3.17 whereas that of Foitite is 3.17.