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Chalcedony
Chalcedony

Fayalite
Fayalite



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Chalcedony
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Fayalite

Chalcedony and Fayalite Physical Properties

Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

 
-
Soluble
-
2.55-2.70
Uneven, Splintery, Conchoidal
Absent
6.5-7
SiO2
 
-
-
-
4.392
Conchoidal
{010} moderate, {100} imperfect
6.5-7
Fe 2SiO 4Michael O’Donoghue , Gems, Sixth Edition (2006)

Chalcedony and Fayalite Chemical Formula

While comparing Chalcedony and Fayalite 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 Chalcedony and Fayalite chemical formula.

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Chalcedony and Fayalite Specific Gravity

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