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Alabaster
Alabaster

Sillimanite
Sillimanite



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Alabaster
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Sillimanite

Alabaster and Sillimanite Physical Properties

Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

 
-
-
-
2.30
-
None
2
CaSO 4 · 2H 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)

Alabaster and Sillimanite Chemical Formula

While comparing Alabaster 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 Alabaster and Sillimanite chemical formula.

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Alabaster and Sillimanite Specific Gravity

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