Kornerupine and Dallasite Physical Properties

Kornerupine

Dallasite

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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

3.25-3.452.58-2.91

1 7.18

1.5 Fracture

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

Not Available

1.6 Cleavage

Good on {110}

Not Available

1.7 Mohs Hardness

6.56.5-7

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 Dallasite Chemical Formula

While comparing Kornerupine and Dallasite 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 Dallasite 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 Dallasite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Kornerupine and Dallasite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Kornerupine and Dallasite Optical Properties during the identification of gemstone. Specific gravity of Kornerupine is 2.58-2.91 whereas that of Dallasite is 2.58-2.91.