Calcite and Orthoclase Physical Properties

Calcite

Orthoclase

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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

2.67-2.732.54-2.61

1 7.18

1.5 Fracture

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

Gems, Uneven

1.6 Cleavage

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

Has perfect cleavage on {001} and good cleavage on {010}. Cleavages intersect at 90°.

1.7 Mohs Hardness

2 10

1.8 Chemical Composition

CaCO 3Ulrich Henn and Claudio C.

KAlSi 3O 8Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

Calcite and Orthoclase Chemical Formula

While comparing Calcite and Orthoclase 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 Orthoclase chemical formula.

Chemical formula of Calcite- CaCO 3Ulrich Henn and Claudio C.
Chemical formula of Orthoclase- KAlSi 3O 8Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

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Calcite and Orthoclase Specific Gravity

Another important criteria for qualitative analysis of gemstones is Calcite and Orthoclase Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Calcite and Orthoclase Optical Properties during the identification of gemstone. Specific gravity of Calcite is 2.54-2.61 whereas that of Orthoclase is 2.54-2.61.