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Topaz
Topaz

Dioptase
Dioptase



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Topaz
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Dioptase

Topaz and Dioptase 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
Soluble
-
3.25-3.35
Conchoidal, ConchoidalWalter Schumann
Perfect in three directions
5
CuSiO 2(OH) 2Michael O’Donoghue , Gems, Sixth Edition (2006) More from other references

Topaz and Dioptase Chemical Formula

While comparing Topaz and Dioptase 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 Dioptase chemical formula.

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Topaz and Dioptase Specific Gravity

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