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Geodes
Geodes

Sillimanite
Sillimanite



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Geodes
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Sillimanite

Geodes and Sillimanite Physical Properties

Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

 
-
-
-
-9999
-
None
-9999
-
 
Tough
-
-
3.20-3.26
Splintery
{010} perfect
6-7.5
Al 2SiO 5Michael O’Donoghue , Gems, Sixth Edition (2006)

Geodes and Sillimanite Chemical Formula

While comparing Geodes 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 Geodes and Sillimanite chemical formula.

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Geodes and Sillimanite Specific Gravity

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