Kornerupine and Charlesite Physical Properties

Kornerupine

Charlesite

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1 Physical Properties

1.1 Tenacity

Not Available

Brittle

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

3.25-3.451.79

1 7.18

1.5 Fracture

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

Irregular/uneven, Brittle, Metallic

1.6 Cleavage

Good on {110}

Perfect on {10bar10}

1.7 Mohs Hardness

6.52.5

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

Ca6(Al,Si)2(SO4)2B(OH)4(OH,O)12•26(H2O)

Kornerupine and Charlesite Chemical Formula

While comparing Kornerupine and Charlesite 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 Charlesite 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 Charlesite- Ca6(Al,Si)2(SO4)2B(OH)4(OH,O)12•26(H2O)

Compare Green Gemstones

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Kornerupine and Charlesite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Kornerupine and Charlesite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Kornerupine and Charlesite Optical Properties during the identification of gemstone. Specific gravity of Kornerupine is 1.79 whereas that of Charlesite is 1.79.