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Sard
Sard

Crystal Opal
Crystal Opal



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Sard
X
Crystal Opal

Sard and Crystal Opal 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.
 
-
-
-
1.97-2.22
Conchoidal
None
5.5-6.5
SiO 2 + H 2OUlrich Henn and Claudio C.

Sard and Crystal Opal Chemical Formula

While comparing Sard and Crystal Opal 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 Crystal Opal chemical formula.

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Sard and Crystal Opal Specific Gravity

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