Rosasite and Augelite Physical Properties

Rosasite

Augelite

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1 Physical Properties

1.1 Tenacity

Brittle

Not Available

1.2 Solubility

Effervesces in cold

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

4-4.22.70-2.75

1 7.18

1.5 Fracture

Splintery

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

1.6 Cleavage

Perfect on {100} and {010}

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

1.7 Mohs Hardness

44.5-5

2 10

1.8 Chemical Composition

Not Available

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

Rosasite and Augelite Chemical Formula

While comparing Rosasite 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 Rosasite and Augelite chemical formula.

Chemical formula of Augelite- Al 2(PO 4)(OH) 3Michael OâDonoghue , Gems, Sixth Edition (2006)

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Rosasite and Augelite Specific Gravity

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