Kornerupine and Phlogopite Physical Properties

Kornerupine

Phlogopite

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1 Physical Properties

1.1 Tenacity

Not Available

Tough

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

3.25-3.452.78-2.85

1 7.18

1.5 Fracture

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

None, Uneven

1.6 Cleavage

Good on {110}

Perfect basal (001)

1.7 Mohs Hardness

6.52-2.5

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

Not Available

Kornerupine and Phlogopite Chemical Formula

While comparing Kornerupine and Phlogopite 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 Phlogopite 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

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Kornerupine and Phlogopite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Kornerupine and Phlogopite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Kornerupine and Phlogopite Optical Properties during the identification of gemstone. Specific gravity of Kornerupine is 2.78-2.85 whereas that of Phlogopite is 2.78-2.85.