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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

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
4.9-5.23.23-3.26
Amber
1 7.18
1.5 Fracture
Not Available
Conchoidal, ConchoidalAnthony et al, Handbook of mineralogy (2001), Conchoidal, Brittle
1.6 Cleavage
None
Perfect on {010} imperfect on {100}
1.7 Mohs Hardness
6-6.56.5-7
Amber
2 10
1.8 Chemical Composition
Not Available
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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  • Chemical formula of Forsterite- Mg 2SiO 4Michael O’Donoghue , Gems, Sixth Edition (2006)

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 and Forsterite Optical Properties during the identification of gemstone. Specific gravity of Pyrite Marcasite is 3.23-3.26 whereas that of Forsterite is 3.23-3.26.