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Pyrite Marcasite
Pyrite Marcasite

Faustite
Faustite



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Pyrite Marcasite
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Faustite

Pyrite Marcasite and Faustite Physical Properties

Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

 
-
-
-
4.9-5.2
-
None
6-6.5
FeS2
 
-
-
-
2.9
Conchoidal
{???} Indistinct
4.5
(Zn,Cu)Al 6(PO 4) 4(OH) 8 · 4H 2OMichael O’Donoghue , Gems, Sixth Edition (2006)

Pyrite Marcasite and Faustite Chemical Formula

While comparing Pyrite Marcasite and Faustite 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 Faustite chemical formula.

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Pyrite Marcasite and Faustite Specific Gravity

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