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Opal
Opal

Padparadscha
Padparadscha



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Opal
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Padparadscha

Opal and Padparadscha Physical Properties

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Physical Properties

Tenacity

BrittleWalter Schumann
-

Solubility

hot salt water
-

Durability

-
-

Specific Gravity

1.98-2.253.95-4.10
1 7.18
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Fracture

Conchoidal
-

Cleavage

None
None

Mohs Hardness

5-6.59
2 10
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Chemical Composition

SiO2 · nH2O
Al 2O 3Ulrich Henn and Claudio C.

Opal and Padparadscha Chemical Formula

While comparing Opal and Padparadscha 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 Padparadscha chemical formula.

  • Chemical formula of Opal- SiO2 · nH2O
  • Chemical formula of Padparadscha- Al 2O 3Ulrich Henn and Claudio C.

Opal and Padparadscha Specific Gravity

Another important criteria for qualitative analysis of gemstones is Opal and Padparadscha Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Opal and Padparadscha Optical Properties during the identification of gemstone. Specific gravity of Opal is 3.95-4.10 whereas that of Padparadscha is 3.95-4.10.