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Opal
Opal

Jadeite
Jadeite



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Opal
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Jadeite

Opal and Jadeite Physical Properties

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Physical Properties

Tenacity

BrittleWalter Schumann
-

Solubility

hot salt water
-

Durability

-
-

Specific Gravity

1.98-2.253.28-3.38
1 7.18
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Fracture

Conchoidal
Splintery, Fibrous

Cleavage

None
Good on [110]

Mohs Hardness

5-6.56.5-7
2 10
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Chemical Composition

SiO2 · nH2O
NaAlSi 2O 6Ulrich Henn and Claudio C.

Opal and Jadeite Chemical Formula

While comparing Opal and Jadeite 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 Jadeite chemical formula.

  • Chemical formula of Opal- SiO2 · nH2O
  • Chemical formula of Jadeite- NaAlSi 2O 6Ulrich Henn and Claudio C.

Opal and Jadeite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Opal and Jadeite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Opal and Jadeite Optical Properties during the identification of gemstone. Specific gravity of Opal is 3.28-3.38 whereas that of Jadeite is 3.28-3.38.