Sinhalite and Pyromorphite Physical Properties

Sinhalite

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

3.46-3.506.5-7.1

1 7.18

1.5 Fracture

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

Uneven, ConchoidalArthur Thomas, Brittle, Metallic

1.6 Cleavage

Not Available

Imperfect- [10 1 1]

1.7 Mohs Hardness

6-73.5-4

2 10

1.8 Chemical Composition

MgAlBO 4Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

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

Sinhalite and Pyromorphite Chemical Formula

While comparing Sinhalite 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 Sinhalite and Pyromorphite chemical formula.

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

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Sinhalite and Pyromorphite Specific Gravity

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