Pyromorphite and Cassiterite Physical Properties

Pyromorphite

Cassiterite

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Physical Properties

Tenacity

Brittle

Solubility

insoluble

Durability

Specific Gravity

6.5-7.16.86-7.03

1 7.18

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Fracture

Uneven, Conchoidal

Subconchoidal, Uneven, Conchoidal, Irregular

Cleavage

Imperfect- [10 1 1]

{100} imperfect, {110} indistinct; partings on {111} or {011}

Mohs Hardness

3.5-46-7

2 10

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Chemical Composition

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

SnO 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

Pyromorphite and Cassiterite Chemical Formula

While comparing Pyromorphite and Cassiterite 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 Cassiterite chemical formula.

Chemical formula of Pyromorphite- Pb 5(PO 4) 3ClArthur Thomas , Gemstones (2009)
Chemical formula of Cassiterite- SnO 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

Compare Green Gemstones

Pyromorphite Vs Smaragdite

Pyromorphite Vs Smithsonite

Pyromorphite Vs Sphalerite

Pyromorphite and Cassiterite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Pyromorphite and Cassiterite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Pyromorphite and Cassiterite Optical Properties during the identification of gemstone. Specific gravity of Pyromorphite is 6.86-7.03 whereas that of Cassiterite is 6.86-7.03.