Epidote and Variscite Physical Properties

Epidote

Variscite

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1 Physical Properties

1.1 Tenacity

Not Available

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

3.25-3.502.42-2.58

1 7.18

1.5 Fracture

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

Conchoidal, Splintery, ConchoidalWalter Schumann, Gemstones of the world (2001) More from other references, Brittle

1.6 Cleavage

{001} perfect and {100} imperfect

[010] perfect

1.7 Mohs Hardness

6-74-5

2 10

1.8 Chemical Composition

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

AlPO₄ · 2(H₂O)

Epidote and Variscite Chemical Formula

While comparing Epidote and Variscite 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 Variscite 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 Variscite- AlPO₄ · 2(H₂O)

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Epidote and Variscite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Epidote and Variscite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Epidote and Variscite Optical Properties during the identification of gemstone. Specific gravity of Epidote is 2.42-2.58 whereas that of Variscite is 2.42-2.58.