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Epidote
Epidote

Thulite
Thulite



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Epidote
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Thulite

Epidote and Thulite Physical Properties

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Physical Properties

Tenacity

-
-

Solubility

-
-

Durability

-
-

Specific Gravity

3.25-3.503.1
1 7.18
👆🏻

Fracture

Conchoidal, Fibrous
Uneven, Conchoidal

Cleavage

{001} perfect and {100} imperfect
Perfect {010} imperfect {100}

Mohs Hardness

6-76-7
2 10
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Chemical Composition

CaAl 2(Fe3+ ,Al)Si 3O 12(OH)Michael O’Donoghue , Gems, Sixth Edition (2006) More from other references
Ca2Al3(SiO4)3(OH)

Epidote and Thulite Chemical Formula

While comparing Epidote and Thulite 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 Thulite chemical formula.

  • Chemical formula of Epidote- CaAl 2(Fe3+ ,Al)Si 3O 12(OH)Michael O’Donoghue , Gems, Sixth Edition (2006) More from other references
  • Chemical formula of Thulite- Ca2Al3(SiO4)3(OH)

Epidote and Thulite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Epidote and Thulite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Epidote and Thulite Optical Properties during the identification of gemstone. Specific gravity of Epidote is 3.1 whereas that of Thulite is 3.1.