Augelite and Vivianite Physical Properties

Augelite

Vivianite

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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

2.70-2.752.64-2.70

1 7.18

1.5 Fracture

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

(e.g. graphite).

1.6 Cleavage

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

{010} Perfect

1.7 Mohs Hardness

4.5-5Not Available

2 10

1.8 Chemical Composition

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

Fe 3(PO 4) 2 8H 2OUlrich Henn and Claudio C.

Augelite and Vivianite Chemical Formula

While comparing Augelite and Vivianite 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 Vivianite chemical formula.

Chemical formula of Augelite- Al 2(PO 4)(OH) 3Michael OâDonoghue , Gems, Sixth Edition (2006)
Chemical formula of Vivianite- Fe 3(PO 4) 2 8H 2OUlrich Henn and Claudio C.

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Augelite and Vivianite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Augelite and Vivianite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Augelite and Vivianite Optical Properties during the identification of gemstone. Specific gravity of Augelite is 2.64-2.70 whereas that of Vivianite is 2.64-2.70.