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Agate Opal
Agate Opal

Sillimanite
Sillimanite



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Agate Opal
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Sillimanite

Agate Opal and Sillimanite Physical Properties

Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

 
-
-
-
1.98-2.50
Conchoidal
None
5.5-6.5
SiO 2 · nH 2OWalter Schumann , Gemstones of the world (2001)
 
Tough
-
-
3.20-3.26
Splintery
{010} perfect
6-7.5
Al 2SiO 5Michael O’Donoghue , Gems, Sixth Edition (2006)

Agate Opal and Sillimanite Chemical Formula

While comparing Agate Opal and Sillimanite 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 Agate Opal and Sillimanite chemical formula.

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Agate Opal and Sillimanite Specific Gravity

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