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Crystal Opal
Crystal Opal
☒

Precious coral
Precious coral
☒



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X
Crystal Opal
X
Precious coral

Crystal Opal and Precious coral Physical Properties

Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

 
-
-
-
1.97-2.22
Conchoidal
None
5.5-6.5
SiO 2 + H 2OUlrich Henn and Claudio C.
 
-
-
-
-9999
-
None
3.5
CaCO3

Crystal Opal and Precious coral Chemical Formula

While comparing Crystal Opal and Precious coral 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 Crystal Opal and Precious coral chemical formula.

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Crystal Opal and Precious coral Specific Gravity

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