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Apophyllite KF
Apophyllite KF

Afghanite
Afghanite



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Apophyllite KF
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Afghanite

Apophyllite KF and Afghanite Physical Properties

Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

 
Brittle
-
-
2.33-2.37
Uneven
Perfect on {001}, imperfect on {110}
4.5-5
(K,Na)Ca4Si8O20(F,OH)•8(H2O)
 
-
-
-
2.55-2.65
Conchoidal
Perfect {10 1 0}
5.5-6
(Na,Ca,K) 8(Si,Al) 12O 24(SO 4,Cl,CO 3) 3(H 2O)Arthur Thomas , Gemstones (2009)

Apophyllite KF and Afghanite Chemical Formula

While comparing Apophyllite KF 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 KF and Afghanite chemical formula.

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Apophyllite KF and Afghanite Specific Gravity

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