Kornerupine and Pyromorphite Physical Properties

Kornerupine

Pyromorphite

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1 Physical Properties

1.1 Tenacity

Not Available

Brittle

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

3.25-3.456.5-7.1

1 7.18

1.5 Fracture

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

Uneven, ConchoidalArthur Thomas, Brittle, Metallic

1.6 Cleavage

Good on {110}

Imperfect- [10 1 1]

1.7 Mohs Hardness

6.53.5-4

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

Pb 5(PO 4) 3ClArthur Thomas , Gemstones (2009)

Kornerupine and Pyromorphite Chemical Formula

While comparing Kornerupine and Pyromorphite 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 Pyromorphite 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 Pyromorphite- Pb 5(PO 4) 3ClArthur Thomas , Gemstones (2009)

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Kornerupine and Pyromorphite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Kornerupine and Pyromorphite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Kornerupine and Pyromorphite Optical Properties during the identification of gemstone. Specific gravity of Kornerupine is 6.5-7.1 whereas that of Pyromorphite is 6.5-7.1.