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Coral
Coral

Precious Opal
Precious Opal



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Coral
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Precious Opal

Coral and Precious Opal Physical Properties

Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

 
-
-
-
2.60-2.70
Irregular
None
3-4
CaCO 3Ulrich Henn and Claudio C.
 
-
-
-
1.98-2.25
Conchoidal
None
5-6.5
SiO 2 · nH 2OGemdat.org , Management Team (2012)

Coral and Precious Opal Chemical Formula

While comparing Coral and Precious 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 Coral and Precious Opal chemical formula.

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Coral and Precious Opal Specific Gravity

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