Kornerupine and Ajoite Physical Properties

Kornerupine

Ajoite

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1 Physical Properties

1.1 Tenacity

Not Available

1.2 Solubility

Not Available

Decomposed by acids

1.3 Durability

Not Available

1.4 Specific Gravity

3.25-3.452.96

1 7.18

1.5 Fracture

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

Not Available

1.6 Cleavage

Good on {110}

Perfect on {010}

1.7 Mohs Hardness

6.55

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

(K,Na)3Cu20Al3Si29O76(OH)16•~8(H2O)

Kornerupine and Ajoite Chemical Formula

While comparing Kornerupine and Ajoite 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 Ajoite 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 Ajoite- (K,Na)3Cu20Al3Si29O76(OH)16•~8(H2O)

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Kornerupine and Ajoite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Kornerupine and Ajoite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Kornerupine and Ajoite Optical Properties during the identification of gemstone. Specific gravity of Kornerupine is 2.96 whereas that of Ajoite is 2.96.