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Sillimanite
Sillimanite

Alabaster
Alabaster



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Sillimanite
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Alabaster

Sillimanite and Alabaster 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)
 
-
-
-
2.30
-
None
2
CaSO 4 · 2H 2OWalter Schumann , Gemstones of the world (2001)

Sillimanite and Alabaster Chemical Formula

While comparing Sillimanite and Alabaster 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 Alabaster chemical formula.

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Sillimanite and Alabaster Specific Gravity

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