Arfvedsonite and Kornerupine Physical Properties

Arfvedsonite

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

3.3-3.53.25-3.45

1 7.18

1.5 Fracture

Uneven, Brittle, Metallic, Brittle, Metallic

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

1.6 Cleavage

Perfect on [110]

Good on {110}

1.7 Mohs Hardness

5-66.5

2 10

1.8 Chemical Composition

NaNa2(Fe++4Fe+++)Si8O22(OH)2

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

Arfvedsonite and Kornerupine Chemical Formula

While comparing Arfvedsonite 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 Arfvedsonite and Kornerupine chemical formula.

Chemical formula of Arfvedsonite- NaNa2(Fe++4Fe+++)Si8O22(OH)2
Chemical formula of Kornerupine- Mg 3Al 6(Si,Al,B) 5O 21(OH)Walter Schumann , Gemstones of the world (2001) More from other references

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Arfvedsonite and Kornerupine Specific Gravity

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