Calcite and Anorthoclase Physical Properties

Calcite

Anorthoclase

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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

2.67-2.732.56-2.62

1 7.18

1.5 Fracture

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

Uneven, Uneven, Gems, Sixth Edition (2006)

1.6 Cleavage

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

From the Greek for oblique and fracture, descriptive of the cleavage

1.7 Mohs Hardness

36-6.5

2 10

1.8 Chemical Composition

CaCO 3Ulrich Henn and Claudio C.

(Na,K)AlSi 3O 8Michael OâDonoghue , Gems, Sixth Edition (2006)

Calcite and Anorthoclase Chemical Formula

While comparing Calcite and Anorthoclase 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 Anorthoclase chemical formula.

Chemical formula of Calcite- CaCO 3Ulrich Henn and Claudio C.
Chemical formula of Anorthoclase- (Na,K)AlSi 3O 8Michael OâDonoghue , Gems, Sixth Edition (2006)

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Calcite and Anorthoclase Specific Gravity

Another important criteria for qualitative analysis of gemstones is Calcite and Anorthoclase Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Calcite and Anorthoclase Optical Properties during the identification of gemstone. Specific gravity of Calcite is 2.56-2.62 whereas that of Anorthoclase is 2.56-2.62.