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Sapphire
Sapphire

Alabaster
Alabaster



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Sapphire
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Alabaster

Sapphire and Alabaster Physical Properties

Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

 
-
insoluble
-
3.95-4.03
Uneven
None, but may exhibit parting
9
Al 2 O 3
 
-
-
-
2.30
-
None
2
CaSO 4 · 2H 2OWalter Schumann , Gemstones of the world (2001)

Sapphire and Alabaster Chemical Formula

While comparing Sapphire 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 Sapphire and Alabaster chemical formula.

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Sapphire and Alabaster Specific Gravity

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