Kornerupine and Cat s Eye Physical Properties

Kornerupine

Cat s Eye

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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

3.25-3.453.5-3.8

1 7.18

1.5 Fracture

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

Not Available

1.6 Cleavage

Good on {110}

1,1 ; 3,2

1.7 Mohs Hardness

6.58.5

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

BeAl ₂ O ₄

Kornerupine and Cat s Eye Chemical Formula

While comparing Kornerupine and Cat s Eye 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 Cat s Eye 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 Cat s Eye- BeAl ₂ O ₄

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Kornerupine and Cat s Eye Specific Gravity

Another important criteria for qualitative analysis of gemstones is Kornerupine and Cat s Eye Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Kornerupine and Cat s Eye Optical Properties during the identification of gemstone. Specific gravity of Kornerupine is 3.5-3.8 whereas that of Cat s Eye is 3.5-3.8.