Kornerupine and Childrenite Physical Properties

Kornerupine

Childrenite

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1 Physical Properties

1.1 Tenacity

Not Available

1.2 Solubility

Not Available

Soluble

1.3 Durability

Not Available

1.4 Specific Gravity

3.25-3.453.06-3.25

1 7.18

1.5 Fracture

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

Sub-Conchoidal, ConchoidalArthur Thomas, Conchoidal, Uneven

1.6 Cleavage

Good on {110}

Poor/indistinct on {100}

1.7 Mohs Hardness

6.54.5-5

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

(Fe,Mn)AlPO 4(OH) 2 -H 2OArthur Thomas , Gemstones (2009)

Kornerupine and Childrenite Chemical Formula

While comparing Kornerupine and Childrenite 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 Childrenite 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 Childrenite- (Fe,Mn)AlPO 4(OH) 2 -H 2OArthur Thomas , Gemstones (2009)

Compare Green Gemstones

Kornerupine Vs Ludlamite

Kornerupine Vs Malachite

Kornerupine Vs Marble

Kornerupine and Childrenite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Kornerupine and Childrenite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Kornerupine and Childrenite Optical Properties during the identification of gemstone. Specific gravity of Kornerupine is 3.06-3.25 whereas that of Childrenite is 3.06-3.25.