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Afghanite and Foitite Physical Properties


Foitite and Afghanite Physical Properties


Physical Properties

Tenacity
Not Available   
Not Available   

Solubility
Not Available   
Not Available   

Durability
Not Available   
Not Available   

Specific Gravity
2.55-2.65   
3.17   

Fracture
Conchoidal, ConchoidalArthur Thomas, Gemstones (2009), Conchoidal, Brittle, Conchoidal, Brittle   
Handbook of mineralogy (2001)   

Cleavage
Perfect {10 1 0}   
None   

Mohs Hardness
5.5-6   
7   

Chemical Composition
(Na,Ca,K) 8(Si,Al) 12O 24(SO 4,Cl,CO 3) 3(H 2O)Arthur Thomas , Gemstones (2009)   
Na x[Fe2+2(Al,Fe3+ )]Al 6(BO 3) 3Si 6O 18(OH) 4Anthony et al , Handbook of mineralogy (2001)   

Optical Properties >>
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Afghanite and Foitite Chemical Formula

While comparing Afghanite 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 Afghanite and Foitite chemical formula.

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Afghanite and Foitite Specific Gravity

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

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