Esperite and Phosgenite Physical Properties

Esperite

Phosgenite

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Physical Properties

Tenacity

Sectile

Solubility

Soluble

Durability

Specific Gravity

4.28-4.426.13

1 7.18

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Fracture

Conchoidal

Cleavage

Distinct on [010] and [100] poor on [101]

Distinct on {001} and {110}, indistinct on {100}

Mohs Hardness

5-5.52-3

2 10

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Chemical Composition

PbCa 3Zn 4(SiO 4) 4Anthony et al , Handbook of mineralogy (2001)

Pb 2(CO 3)Cl 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

Esperite and Phosgenite Chemical Formula

While comparing Esperite and Phosgenite 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 Esperite and Phosgenite chemical formula.

Chemical formula of Esperite- PbCa 3Zn 4(SiO 4) 4Anthony et al , Handbook of mineralogy (2001)
Chemical formula of Phosgenite- Pb 2(CO 3)Cl 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

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Esperite and Phosgenite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Esperite and Phosgenite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Esperite and Phosgenite Optical Properties during the identification of gemstone. Specific gravity of Esperite is 6.13 whereas that of Phosgenite is 6.13.