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Pyrope
Pyrope

Brookite
Brookite



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Pyrope
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Brookite

Pyrope and Brookite Physical Properties

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Physical Properties

Tenacity

-
Brittle

Solubility

insoluble in water
-

Durability

-
-

Specific Gravity

3.62-3.873.87-4.14
1 7.18
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Fracture

Conchoidal
Subconchoidal, Conchoidal

Cleavage

None
Poor on {120}, in traces on {001}

Mohs Hardness

7-7.55.5-6
2 10
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Chemical Composition

Mg 3Al 2(SiO 4) 3Arthur Thomas , Gemstones (2009)
TiO 2Michael O’Donoghue , Gems, Sixth Edition (2006) More from other references

Pyrope and Brookite Chemical Formula

While comparing Pyrope and Brookite 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 Pyrope and Brookite chemical formula.

  • Chemical formula of Pyrope- Mg 3Al 2(SiO 4) 3Arthur Thomas , Gemstones (2009)
  • Chemical formula of Brookite- TiO 2Michael O’Donoghue , Gems, Sixth Edition (2006) More from other references

Pyrope and Brookite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Pyrope and Brookite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Pyrope and Brookite Optical Properties during the identification of gemstone. Specific gravity of Pyrope is 3.87-4.14 whereas that of Brookite is 3.87-4.14.