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Fayalite
Fayalite

Amethyst
Amethyst



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Fayalite
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Amethyst

Fayalite and Amethyst Physical Properties

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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)
 
-
insoluble in common solvents
-
2.65
Conchoidal, ConchoidalWalter Schumann
Indiscernible
7
SiO2

Fayalite and Amethyst Chemical Formula

While comparing Fayalite and Amethyst 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 Amethyst chemical formula.

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Fayalite and Amethyst Specific Gravity

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