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Carnelian
Carnelian

Opal
Opal



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Carnelian
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Opal

Carnelian and Opal Physical Properties

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Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

 
-
-
-
2.58-2.64
Uneven, Splintery, Conchoidal
Absent
6.5-7
SiO2
 
BrittleWalter Schumann
hot salt water
-
1.98-2.25
Conchoidal
None
5-6.5
SiO2 · nH2O

Carnelian and Opal Chemical Formula

While comparing Carnelian and 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 Carnelian and Opal chemical formula.

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Carnelian and Opal Specific Gravity

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