Crocoite and Allanite Physical Properties

Crocoite

Allanite

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1 Physical Properties

1.1 Tenacity

Not Available

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

5.90-6.103.40-4.20

1 7.18

1.5 Fracture

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

Not Available

1.6 Cleavage

{110} Distinct, {001} Indistinct, {100} Indistinct

Not Available

1.7 Mohs Hardness

2.5-3Not Available

2 10

1.8 Chemical Composition

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

Not Available

Crocoite and Allanite Chemical Formula

While comparing Crocoite and Allanite 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 Crocoite and Allanite chemical formula.

Chemical formula of Crocoite- PbCrO 4Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

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Crocoite and Allanite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Crocoite and Allanite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Crocoite and Allanite Optical Properties during the identification of gemstone. Specific gravity of Crocoite is 3.40-4.20 whereas that of Allanite is 3.40-4.20.