Aragonite and Allanite Physical Properties

Aragonite

Allanite

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1 Physical Properties

1.1 Tenacity

Brittle

Not Available

1.2 Solubility

Dilute acid

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

2.93-2.963.40-4.20

1 7.18

2.5 Fracture

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

Not Available

2.6 Cleavage

Distinct on {010}, imperfect {110} and {011}

Not Available

2.7 Mohs Hardness

3.5-4Not Available

2 10

2.11 Chemical Composition

CaCO 3Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

Not Available

Aragonite and Allanite Chemical Formula

While comparing Aragonite 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 Aragonite and Allanite chemical formula.

Chemical formula of Aragonite- CaCO 3Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

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Aragonite and Allanite Specific Gravity

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