Gahnite and Kornerupine Physical Properties

Gahnite

Kornerupine

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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

4.00-4.623.25-3.45

1 7.18

1.5 Fracture

Conchoidal, Uneven

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

1.6 Cleavage

Indistinct parting on [111]

Good on {110}

1.7 Mohs Hardness

7.5-86.5

2 10

1.8 Chemical Composition

ZnAl 2O 4Michael OâDonoghue , Gems, Sixth Edition (2006)

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

Gahnite and Kornerupine Chemical Formula

While comparing Gahnite and Kornerupine 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 Gahnite and Kornerupine chemical formula.

Chemical formula of Gahnite- ZnAl 2O 4Michael OâDonoghue , Gems, Sixth Edition (2006)
Chemical formula of Kornerupine- Mg 3Al 6(Si,Al,B) 5O 21(OH)Walter Schumann , Gemstones of the world (2001) More from other references

Compare Blue Gemstones

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Gahnite Vs Hydrogrossular

Gahnite and Kornerupine Specific Gravity

Another important criteria for qualitative analysis of gemstones is Gahnite and Kornerupine Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Gahnite and Kornerupine Optical Properties during the identification of gemstone. Specific gravity of Gahnite is 3.25-3.45 whereas that of Kornerupine is 3.25-3.45.