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Kyanite
Kyanite

Precious Opal
Precious Opal



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Kyanite
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Precious Opal

Kyanite and Precious Opal Physical Properties

Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

 
Brittle
-
-
3.53-3.65
Splintery
[100] perfect [010] imperfect with 79° angle between
4-7
Al2SiO5
 
-
-
-
1.98-2.25
Conchoidal
None
5-6.5
SiO 2 · nH 2OGemdat.org , Management Team (2012)

Kyanite and Precious Opal Chemical Formula

While comparing Kyanite and Precious Opal 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 Kyanite and Precious Opal chemical formula.

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Kyanite and Precious Opal Specific Gravity

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