Andesine and Calcite Physical Properties

Andesine

Calcite

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1 Physical Properties

1.1 Tenacity

Brittle

1.2 Solubility

Not Available

Soluble

1.3 Durability

Not Available

1.4 Specific Gravity

2.65-2.692.67-2.73

1 7.18

1.5 Fracture

Uneven, Uneven, Conchoidal, Uneven, Gems, Sixth Edition (2006)

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

1.6 Cleavage

Perfect on {001}, good on {010}

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

1.7 Mohs Hardness

6-6.53

2 10

1.8 Chemical Composition

(Na,Ca)Al_1-2Si_3-2O₈

CaCO 3Ulrich Henn and Claudio C.

Andesine and Calcite Chemical Formula

While comparing Andesine and Calcite 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 Andesine and Calcite chemical formula.

Chemical formula of Andesine- (Na,Ca)Al_1-2Si_3-2O₈
Chemical formula of Calcite- CaCO 3Ulrich Henn and Claudio C.

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Andesine and Calcite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Andesine and Calcite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Andesine and Calcite Optical Properties during the identification of gemstone. Specific gravity of Andesine is 2.67-2.73 whereas that of Calcite is 2.67-2.73.