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Fayalite
Fayalite

Erythrite
Erythrite



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Fayalite
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Erythrite

Fayalite and Erythrite 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)
 
Sectile
-
-
3.06
Sectile
Perfect on {010}; poor on {100} and { 1 02}.
-9999
Co3(AsO4)2•8(H2O)

Fayalite and Erythrite Chemical Formula

While comparing Fayalite and Erythrite 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 Erythrite chemical formula.

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Fayalite and Erythrite Specific Gravity

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