Kornerupine and Labradorite Physical Properties

Kornerupine

Labradorite

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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

3.25-3.452.69-2.72

1 7.18

1.5 Fracture

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

Uneven, Conchoidal, Gems, Sixth Edition (2006)

1.6 Cleavage

Good on {110}

Perfect on {001}, less perfect on {010}, intersecting at near 90°; distinct on {110}

1.7 Mohs Hardness

6.56-6.5

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

(Na,Ca)_1-2Si_3-2O₈

Kornerupine and Labradorite Chemical Formula

While comparing Kornerupine and Labradorite 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 Labradorite 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 Labradorite- (Na,Ca)_1-2Si_3-2O₈

Compare Green Gemstones

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Kornerupine and Labradorite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Kornerupine and Labradorite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Kornerupine and Labradorite Optical Properties during the identification of gemstone. Specific gravity of Kornerupine is 2.69-2.72 whereas that of Labradorite is 2.69-2.72.