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Brookite
Brookite

Epidote
Epidote



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Brookite
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Brookite and Epidote Physical Properties

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Physical Properties

Tenacity

Brittle
-

Solubility

-
-

Durability

-
-

Specific Gravity

3.87-4.143.25-3.50
1 7.18
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Fracture

Subconchoidal, Conchoidal
Conchoidal, Fibrous

Cleavage

Poor on {120}, in traces on {001}
{001} perfect and {100} imperfect

Mohs Hardness

5.5-66-7
2 10
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Chemical Composition

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

Brookite and Epidote Chemical Formula

While comparing Brookite and Epidote 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 Brookite and Epidote chemical formula.

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

Brookite and Epidote Specific Gravity

Another important criteria for qualitative analysis of gemstones is Brookite and Epidote Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Brookite and Epidote Optical Properties during the identification of gemstone. Specific gravity of Brookite is 3.25-3.50 whereas that of Epidote is 3.25-3.50.