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Afghanite
Afghanite

Anorthite
Anorthite



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Afghanite
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Anorthite

Afghanite and Anorthite Physical Properties

Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

 
-
-
-
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)
 
Brittle
-
-
2.77
Uneven
Perfect [001] good [010] poor [110]
6-6.5
CaAl 2Si 2O 8Michael O’Donoghue , Gems, Sixth Edition (2006)

Afghanite and Anorthite Chemical Formula

While comparing Afghanite and Anorthite 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 Anorthite chemical formula.

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Afghanite and Anorthite Specific Gravity

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