Aragonite and Danburite Physical Properties

Aragonite

Danburite

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Physical Properties

Tenacity

Brittle

Solubility

Dilute acid

Durability

Specific Gravity

2.93-2.962.97-3.03

1 7.18

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Fracture

Subconchoidal, Conchoidal

Uneven, ConchoidalWalter Schumann, Conchoidal

Cleavage

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

{001} Poor

Mohs Hardness

3.5-47

2 10

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Chemical Composition

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

CaB 2(SiO 4) 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

Aragonite and Danburite Chemical Formula

While comparing Aragonite and Danburite 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 Danburite chemical formula.

Chemical formula of Aragonite- CaCO 3Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Chemical formula of Danburite- CaB 2(SiO 4) 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

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Aragonite and Danburite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Aragonite and Danburite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Aragonite and Danburite Optical Properties during the identification of gemstone. Specific gravity of Aragonite is 2.97-3.03 whereas that of Danburite is 2.97-3.03.