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Pyrite Marcasite
Pyrite Marcasite

Afghanite
Afghanite



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Pyrite Marcasite
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Afghanite

Pyrite Marcasite and Afghanite Physical Properties

1 Physical Properties
1.1 Tenacity
Not Available
Not Available
1.2 Solubility
Not Available
Not Available
1.3 Durability
Not Available
Not Available
1.4 Specific Gravity
4.9-5.22.55-2.65
Amber
1 7.18
1.5 Fracture
Not Available
Conchoidal, ConchoidalArthur Thomas, Gemstones (2009), Conchoidal, Brittle, Conchoidal, Brittle
1.6 Cleavage
None
Perfect {10 1 0}
1.7 Mohs Hardness
6-6.55.5-6
Amber
2 10
1.8 Chemical Composition
Not Available
(Na,Ca,K) 8(Si,Al) 12O 24(SO 4,Cl,CO 3) 3(H 2O)Arthur Thomas , Gemstones (2009)

Pyrite Marcasite and Afghanite Chemical Formula

While comparing Pyrite Marcasite 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 Pyrite Marcasite and Afghanite chemical formula.

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  • Chemical formula of Afghanite- (Na,Ca,K) 8(Si,Al) 12O 24(SO 4,Cl,CO 3) 3(H 2O)Arthur Thomas , Gemstones (2009)

Pyrite Marcasite and Afghanite Specific Gravity

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