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Sillimanite
Sillimanite

Mexican fire opal
Mexican fire opal



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Sillimanite
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Mexican fire opal

Sillimanite and Mexican fire opal Physical Properties

Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

 
Tough
-
-
3.20-3.26
Splintery
{010} perfect
6-7.5
Al 2SiO 5Michael O’Donoghue , Gems, Sixth Edition (2006)
 
-
-
-
-9999
-
None
-9999
SiO2·nH2O

Sillimanite and Mexican fire opal Chemical Formula

While comparing Sillimanite and Mexican fire 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 Sillimanite and Mexican fire opal chemical formula.

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Sillimanite and Mexican fire opal Specific Gravity

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