Calcite and Augelite Physical Properties

Calcite

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

2.67-2.73

2.70-2.75

1.5 Fracture

Conchoidal, ConchoidalArthur Thomas, Gemstones (2009), ConchoidalArthur Thomas, Gemstones (2009), Brittle, Conchoidal

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

1.6 Cleavage

Perfect on [10 1 1] three directions with angle of 74° 55

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

1.7 Mohs Hardness

4.5-5

1.8 Chemical Composition

CaCO 3Ulrich Henn and Claudio C.

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

Calcite and Augelite Chemical Formula

While comparing Calcite 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 Calcite and Augelite chemical formula.

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

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Calcite and Augelite Specific Gravity

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