Cryolite and Augelite Physical Properties

Cryolite

Augelite

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1 Physical Properties

1.1 Tenacity

Brittle

Not Available

1.2 Solubility

Soluble

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

2.972.70-2.75

1 7.18

1.5 Fracture

Uneven

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

1.6 Cleavage

None observed

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

1.7 Mohs Hardness

2.54.5-5

2 10

1.8 Chemical Composition

Na 3AlF 6Ulrich Henn and Claudio C.

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

Cryolite and Augelite Chemical Formula

While comparing Cryolite 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 Cryolite and Augelite chemical formula.

Chemical formula of Cryolite- Na 3AlF 6Ulrich Henn and Claudio C.
Chemical formula of Augelite- Al 2(PO 4)(OH) 3Michael OâDonoghue , Gems, Sixth Edition (2006)

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Cryolite and Augelite Specific Gravity

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