Kornerupine and Calcite Physical Properties

Kornerupine

Calcite

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1 Physical Properties

1.1 Tenacity

Not Available

Brittle

1.2 Solubility

Not Available

Soluble

1.3 Durability

Not Available

1.4 Specific Gravity

3.25-3.452.67-2.73

1 7.18

1.5 Fracture

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

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

1.6 Cleavage

Good on {110}

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

1.7 Mohs Hardness

6.53

2 10

1.8 Chemical Composition

Mg 3Al 6(Si,Al,B) 5O 21(OH)Walter Schumann , Gemstones of the world (2001) More from other references

CaCO 3Ulrich Henn and Claudio C.

Kornerupine and Calcite Chemical Formula

While comparing Kornerupine 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 Kornerupine and Calcite chemical formula.

Chemical formula of Kornerupine- Mg 3Al 6(Si,Al,B) 5O 21(OH)Walter Schumann , Gemstones of the world (2001) More from other references
Chemical formula of Calcite- CaCO 3Ulrich Henn and Claudio C.

Compare Green Gemstones

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Kornerupine and Calcite Specific Gravity

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