Pyromorphite and Nephrite Physical Properties

Pyromorphite

Nephrite

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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

6.5-7.12.90-3.10

1 7.18

1.5 Fracture

Uneven, ConchoidalArthur Thomas, Brittle, Metallic

Splintery, Granular, Splintery, Granular, Gemstones (2009)

1.6 Cleavage

Imperfect- [10 1 1]

Not Available

1.7 Mohs Hardness

3.5-46-6.5

2 10

1.11 Chemical Composition

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

Ca 2(Mg,Fe) 5(OH) 2Walter Schumann , Gemstones of the world (2001) More from other references

Pyromorphite and Nephrite Chemical Formula

While comparing Pyromorphite and Nephrite 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 Pyromorphite and Nephrite chemical formula.

Chemical formula of Pyromorphite- Pb 5(PO 4) 3ClArthur Thomas , Gemstones (2009)
Chemical formula of Nephrite- Ca 2(Mg,Fe) 5(OH) 2Walter Schumann , Gemstones of the world (2001) More from other references

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Pyromorphite Vs Sapphirine

Pyromorphite and Nephrite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Pyromorphite and Nephrite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Pyromorphite and Nephrite Optical Properties during the identification of gemstone. Specific gravity of Pyromorphite is 2.90-3.10 whereas that of Nephrite is 2.90-3.10.