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Opal
Opal

Creedite
Creedite



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Opal
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Creedite

Opal and Creedite 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
-
-
2.70
Uneven, Conchoidal
Perfect on {100}
4.5
Ca 3Al 2(SO 4)(F,OH) 10Ulrich Henn and Claudio C.

Opal and Creedite Chemical Formula

While comparing Opal and Creedite 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 Creedite chemical formula.

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Opal and Creedite Specific Gravity

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