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Pyrite
Pyrite

Amethyst
Amethyst



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Pyrite
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Amethyst

Pyrite and Amethyst Physical Properties

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Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

 
Brittle
insoluble in water
-
5.00-5.20
Uneven, Conchoidal, ConchoidalWalter Schumann
Indistinct on {001}; partings on {011} and {111}
6-6.5
FeS 2Michael O’Donoghue , Gems, Sixth Edition (2006) More from other references
 
-
insoluble in common solvents
-
2.65
Conchoidal, ConchoidalWalter Schumann
Indiscernible
7
SiO2

Pyrite and Amethyst Chemical Formula

While comparing Pyrite 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 Pyrite and Amethyst chemical formula.

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Pyrite and Amethyst Specific Gravity

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