Kornerupine and Apophyllite Physical Properties

Kornerupine

Apophyllite

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1 Physical Properties

1.1 Tenacity

Not Available

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

3.25-3.45

2.30-2.50

1.5 Fracture

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

Uneven, UnevenArthur Thomas, Gemstones (2009)

1.6 Cleavage

Good on {110}

Perfect on (001)

1.7 Mohs Hardness

6.5

4.5-5

1.8 Chemical Composition

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

KCa 4Si 8O 20(F,OH) · 8H 2OUlrich Henn and Claudio C.

Kornerupine and Apophyllite Chemical Formula

While comparing Kornerupine and Apophyllite 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 Apophyllite 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 Apophyllite- KCa 4Si 8O 20(F,OH) · 8H 2OUlrich Henn and Claudio C.

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Kornerupine and Apophyllite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Kornerupine and Apophyllite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Kornerupine and Apophyllite Optical Properties during the identification of gemstone. Specific gravity of Kornerupine is 2.30-2.50 whereas that of Apophyllite is 2.30-2.50.