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Coral
Coral

Crystal Opal
Crystal Opal



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Coral
X
Crystal Opal

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

Coral and Crystal Opal Chemical Formula

While comparing Coral 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 Coral and Crystal Opal chemical formula.

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Coral and Crystal Opal Specific Gravity

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