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Moss Opal
Moss Opal

Sillimanite
Sillimanite



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Moss Opal
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Sillimanite

Moss 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)

Moss Opal and Sillimanite Chemical Formula

While comparing Moss 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 Moss Opal and Sillimanite chemical formula.

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Moss Opal and Sillimanite Specific Gravity

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