Epidote and Turquoise Physical Properties

Epidote

Turquoise

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1 Physical Properties

1.1 Tenacity

Not Available

1.2 Solubility

Not Available

Soluble

1.3 Durability

Not Available

1.4 Specific Gravity

3.25-3.502.30-2.90

1 7.18

1.5 Fracture

Conchoidal, Conchoidal, Gemstones of the world (2001) More from other references, Fibrous

Conchoidal, ConchoidalArthur Thomas, Gemstones (2009), Brittle

1.6 Cleavage

{001} perfect and {100} imperfect

Good to perfect_usually N/A

1.7 Mohs Hardness

6-75-6

2 10

1.8 Chemical Composition

CaAl 2(Fe3+ ,Al)Si 3O 12(OH)Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

CuAl₆(PO₄)₄(OH)₈ • 4H₂O

Epidote and Turquoise Chemical Formula

While comparing Epidote and Turquoise 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 Epidote and Turquoise chemical formula.

Chemical formula of Epidote- CaAl 2(Fe3+ ,Al)Si 3O 12(OH)Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Chemical formula of Turquoise- CuAl₆(PO₄)₄(OH)₈ • 4H₂O

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Epidote and Turquoise Specific Gravity

Another important criteria for qualitative analysis of gemstones is Epidote and Turquoise Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Epidote and Turquoise Optical Properties during the identification of gemstone. Specific gravity of Epidote is 2.30-2.90 whereas that of Turquoise is 2.30-2.90.