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Topaz
Topaz

Brookite
Brookite



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Topaz
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Brookite

Topaz and Brookite Physical Properties

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Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

 
-
-
-
3.49-3.57
Subconchoidal, Uneven, Conchoidal
[001] Perfect
8
Al2SiO4(F,OH)2
 
Brittle
-
-
3.87-4.14
Subconchoidal, Conchoidal
Poor on {120}, in traces on {001}
5.5-6
TiO 2Michael O’Donoghue , Gems, Sixth Edition (2006) More from other references

Topaz and Brookite Chemical Formula

While comparing Topaz 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 Topaz and Brookite chemical formula.

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Topaz and Brookite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Topaz and Brookite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Topaz Vs Brookite during the identification of gemstone. Specific gravity of Topaz is whereas that of Brookite is .