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Sard
Sard

Augelite
Augelite



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Sard
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Augelite

Sard and Augelite Physical Properties

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Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

 
-
-
-
2.58-2.63
Conchoidal
None
6.5-7
SiO 2Ulrich Henn and Claudio C.
 
-
-
-
2.70-2.75
Conchoidal
From the Greek for luster, for its pearly luster on the cleavage.
4.5-5
Al 2(PO 4)(OH) 3Michael O’Donoghue , Gems, Sixth Edition (2006)

Sard and Augelite Chemical Formula

While comparing Sard and Augelite 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 Sard and Augelite chemical formula.

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Sard and Augelite Specific Gravity

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