Allanite and Phosgenite Physical Properties

Allanite

Phosgenite

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1 Physical Properties

1.1 Tenacity

Not Available

Sectile

1.2 Solubility

Not Available

Soluble

1.3 Durability

Not Available

1.4 Specific Gravity

3.40-4.206.13

1 7.18

1.5 Fracture

Not Available

Conchoidal, ConchoidalArthur Thomas, Gemstones (2009), (e.g. graphite).

1.6 Cleavage

Not Available

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

1.7 Mohs Hardness

Not Available2-3

2 10

1.8 Chemical Composition

Not Available

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

Allanite and Phosgenite Chemical Formula

While comparing Allanite 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 Allanite and Phosgenite chemical formula.

Chemical formula of Phosgenite- Pb 2(CO 3)Cl 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

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Allanite and Phosgenite Specific Gravity

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