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Opal
Opal

Chalcopyrite
Chalcopyrite



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Opal
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Chalcopyrite

Opal and Chalcopyrite Physical Properties

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Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

 
BrittleWalter Schumann
hot salt water
-
1.98-2.25
Conchoidal
None
5-6.5
SiO2 · nH2O
 
Brittle
Soluble
-
4.1-4.3
Uneven
Indistinct on {011}
3.5-4
CuFeS 2Anthony et al , Handbook of mineralogy (2001)

Opal and Chalcopyrite Chemical Formula

While comparing Opal and Chalcopyrite 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 Opal and Chalcopyrite chemical formula.

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Opal and Chalcopyrite Specific Gravity

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