Augelite and Sardonyx Physical Properties

Augelite

Sardonyx

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1 Physical Properties

1.1 Tenacity

Not Available

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

2.70-2.752.55-2.70

1 7.18

1.5 Fracture

ConchoidalArthur Thomas, Gemstones (2009), ConchoidalArthur Thomas, Gemstones (2009)

Not Available

1.6 Cleavage

From the Greek for luster, for its pearly luster on the cleavage.

Not Available

1.7 Mohs Hardness

4.5-56.5-7

2 10

1.8 Chemical Composition

Al 2(PO 4)(OH) 3Michael OâDonoghue , Gems, Sixth Edition (2006)

SiO 2Ulrich Henn and Claudio C.

Augelite and Sardonyx Chemical Formula

While comparing Augelite and Sardonyx 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 Augelite and Sardonyx chemical formula.

Chemical formula of Augelite- Al 2(PO 4)(OH) 3Michael OâDonoghue , Gems, Sixth Edition (2006)
Chemical formula of Sardonyx- SiO 2Ulrich Henn and Claudio C.

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Augelite and Sardonyx Specific Gravity

Another important criteria for qualitative analysis of gemstones is Augelite and Sardonyx Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Augelite and Sardonyx Optical Properties during the identification of gemstone. Specific gravity of Augelite is 2.55-2.70 whereas that of Sardonyx is 2.55-2.70.