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Sard
Sard

Dioptase
Dioptase



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Sard
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Dioptase

Sard and Dioptase Physical Properties

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Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

 
-
-
-
2.58-2.63
Conchoidal
None
6.5-7
SiO 2Ulrich Henn and Claudio C.
 
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

Sard and Dioptase Chemical Formula

While comparing Sard 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 Sard and Dioptase chemical formula.

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Sard and Dioptase Specific Gravity

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