Aragonite and Bertrandite Physical Properties

Aragonite

Bertrandite

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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

2.93-2.962.59-2.60

1 7.18

1.5 Fracture

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

Brittle, Metallic, Brittle, Metallic

1.6 Cleavage

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

{001} Perfect, {110} Distinct, {101} Distinct

1.7 Mohs Hardness

3.5-46-7

2 10

1.8 Chemical Composition

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

Be 4Si 2O 7(OH) 2Anthony et al , Handbook of mineralogy (2001)

Aragonite and Bertrandite Chemical Formula

While comparing Aragonite and Bertrandite 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 Bertrandite chemical formula.

Chemical formula of Aragonite- CaCO 3Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Chemical formula of Bertrandite- Be 4Si 2O 7(OH) 2Anthony et al , Handbook of mineralogy (2001)

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Aragonite and Bertrandite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Aragonite and Bertrandite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Aragonite and Bertrandite Optical Properties during the identification of gemstone. Specific gravity of Aragonite is 2.59-2.60 whereas that of Bertrandite is 2.59-2.60.