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Apophyllite and Afghanite Physical Properties


Afghanite and Apophyllite Physical Properties


Physical Properties

Tenacity
Not Available   
Not Available   

Solubility
Not Available   
Not Available   

Durability
Not Available   
Not Available   

Specific Gravity
2.30-2.50   
2.55-2.65   

Fracture
Uneven, UnevenArthur Thomas, Gemstones (2009)   
Conchoidal, ConchoidalArthur Thomas, Gemstones (2009), Conchoidal, Brittle, Conchoidal, Brittle   

Cleavage
Perfect on (001)   
Perfect {10 1 0}   

Mohs Hardness
4.5-5   
5.5-6   

Chemical Composition
KCa 4Si 8O 20(F,OH) · 8H 2OUlrich Henn and Claudio C.   
(Na,Ca,K) 8(Si,Al) 12O 24(SO 4,Cl,CO 3) 3(H 2O)Arthur Thomas , Gemstones (2009)   

Optical Properties >>
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Apophyllite and Afghanite Chemical Formula

While comparing Apophyllite and Afghanite 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 Apophyllite and Afghanite chemical formula.

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Apophyllite and Afghanite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Apophyllite and Afghanite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Apophyllite and Afghanite Optical Properties during the identification of gemstone. Specific gravity of Apophyllite is 2.55-2.65 whereas that of Afghanite is 2.55-2.65.

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