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Fayalite
Fayalite

Marcasite
Marcasite



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Fayalite
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Marcasite

Fayalite and Marcasite Physical Properties

Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

 
-
-
-
4.392
Conchoidal
{010} moderate, {100} imperfect
6.5-7
Fe 2SiO 4Michael O’Donoghue , Gems, Sixth Edition (2006)
 
-
-
-
4.80-4.90
Uneven
{010} Indistinct
6-6.5
FeS 2Michael O’Donoghue , Gems, Sixth Edition (2006) More from other references

Fayalite and Marcasite Chemical Formula

While comparing Fayalite and Marcasite 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 Fayalite and Marcasite chemical formula.

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Fayalite and Marcasite Specific Gravity

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