Kornerupine and Nephrite Physical Properties

Kornerupine

Nephrite

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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

3.25-3.452.90-3.10

1 7.18

1.5 Fracture

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

Splintery, Granular, Splintery, Granular, Gemstones (2009)

1.6 Cleavage

Good on {110}

Not Available

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

Ca 2(Mg,Fe) 5(OH) 2Walter Schumann , Gemstones of the world (2001) More from other references

Kornerupine and Nephrite Chemical Formula

While comparing Kornerupine and Nephrite 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 Nephrite 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 Nephrite- Ca 2(Mg,Fe) 5(OH) 2Walter Schumann , Gemstones of the world (2001) More from other references

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Kornerupine and Nephrite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Kornerupine and Nephrite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Kornerupine and Nephrite Optical Properties during the identification of gemstone. Specific gravity of Kornerupine is 2.90-3.10 whereas that of Nephrite is 2.90-3.10.