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Pyrite Marcasite
Pyrite Marcasite

Forsterite
Forsterite



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Pyrite Marcasite
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Forsterite

Pyrite Marcasite and Forsterite Physical Properties

Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

 
-
-
-
4.9-5.2
-
None
6-6.5
FeS2
 
-
-
-
3.23-3.26
Conchoidal
Perfect on {010} imperfect on {100}
6.5-7
Mg 2SiO 4Michael O’Donoghue , Gems, Sixth Edition (2006)

Pyrite Marcasite and Forsterite Chemical Formula

While comparing Pyrite Marcasite and Forsterite 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 Forsterite chemical formula.

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Pyrite Marcasite and Forsterite Specific Gravity

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