Poudretteite and Kornerupine Physical Properties

Poudretteite

Kornerupine

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1 Physical Properties

1.1 Tenacity

Brittle

Not Available

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

2.51-2.533.25-3.45

1 7.18

1.5 Fracture

Conchoidal, Splintery

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

1.6 Cleavage

None

Good on {110}

1.7 Mohs Hardness

56.5

2 10

1.8 Chemical Composition

KNa 2B 3Si 12O 30Michael OâDonoghue , Gems, Sixth Edition (2006)

Mg 3Al 6(Si,Al,B) 5O 21(OH)Walter Schumann , Gemstones of the world (2001) More from other references

Poudretteite and Kornerupine Chemical Formula

While comparing Poudretteite and Kornerupine 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 Poudretteite and Kornerupine chemical formula.

Chemical formula of Poudretteite- KNa 2B 3Si 12O 30Michael OâDonoghue , Gems, Sixth Edition (2006)
Chemical formula of Kornerupine- Mg 3Al 6(Si,Al,B) 5O 21(OH)Walter Schumann , Gemstones of the world (2001) More from other references

Compare Violet Gemstones

Poudretteite Vs Rutilated Quartz

Poudretteite Vs Sapphire

Poudretteite Vs Rubellite

Poudretteite and Kornerupine Specific Gravity

Another important criteria for qualitative analysis of gemstones is Poudretteite and Kornerupine Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Poudretteite and Kornerupine Optical Properties during the identification of gemstone. Specific gravity of Poudretteite is 3.25-3.45 whereas that of Kornerupine is 3.25-3.45.