Kornerupine and Andradite Garnet Physical Properties

Kornerupine

Andradite Garnet

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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

3.25-3.453.8-3.9

1 7.18

1.5 Fracture

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

Not Available

1.6 Cleavage

Good on {110}

None

1.7 Mohs Hardness

6.56.5-7.5

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

Ca₃Fe³⁺₂Si₃O₁₂

Kornerupine and Andradite Garnet Chemical Formula

While comparing Kornerupine and Andradite Garnet 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 Andradite Garnet 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 Andradite Garnet- Ca₃Fe³⁺₂Si₃O₁₂

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Kornerupine and Andradite Garnet Specific Gravity

Another important criteria for qualitative analysis of gemstones is Kornerupine and Andradite Garnet Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Kornerupine and Andradite Garnet Optical Properties during the identification of gemstone. Specific gravity of Kornerupine is 3.8-3.9 whereas that of Andradite Garnet is 3.8-3.9.