Sardonyx and Augelite Physical Properties

Sardonyx

Augelite

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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

2.55-2.702.70-2.75

1 7.18

1.5 Fracture

Not Available

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

1.6 Cleavage

Not Available

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

1.7 Mohs Hardness

6.5-74.5-5

2 10

1.8 Chemical Composition

SiO 2Ulrich Henn and Claudio C.

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

Sardonyx and Augelite Chemical Formula

While comparing Sardonyx 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 Sardonyx and Augelite chemical formula.

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

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Sardonyx and Augelite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Sardonyx and Augelite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Sardonyx and Augelite Optical Properties during the identification of gemstone. Specific gravity of Sardonyx is 2.70-2.75 whereas that of Augelite is 2.70-2.75.