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Topaz
Topaz

Aragonite
Aragonite



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Topaz
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Aragonite

Topaz and Aragonite 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
Dilute acid
-
2.93-2.96
Subconchoidal, Conchoidal
Distinct on {010}, imperfect {110} and {011}
3.5-4
CaCO 3Michael O’Donoghue , Gems, Sixth Edition (2006) More from other references

Topaz and Aragonite Chemical Formula

While comparing Topaz and Aragonite 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 Aragonite chemical formula.

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Topaz and Aragonite Specific Gravity

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