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Turquoise
Turquoise

Amethyst
Amethyst



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Turquoise
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Amethyst

Turquoise and Amethyst Physical Properties

Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

 
-
Soluble
-
2.30-2.90
Conchoidal
Good to perfect_usually N/A
5-6
CuAl6(PO4)4(OH)8 • 4H2O
 
-
insoluble in common solvents
-
2.65
Conchoidal, ConchoidalWalter Schumann
Indiscernible
7
SiO2

Turquoise and Amethyst Chemical Formula

While comparing Turquoise 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 Turquoise and Amethyst chemical formula.

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Turquoise and Amethyst Specific Gravity

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