Aragonite and Realgar Physical Properties

Aragonite

Realgar

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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

2.93-2.963.56

1 7.18

1.5 Fracture

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

(e.g. graphite).

1.6 Cleavage

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

{010} Good

1.7 Mohs Hardness

3.5-4Not Available

2 10

1.8 Chemical Composition

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

AsSMichael OâDonoghue , Gems, Sixth Edition (2006)

Aragonite and Realgar Chemical Formula

While comparing Aragonite and Realgar 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 Realgar chemical formula.

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

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Aragonite and Realgar Specific Gravity

Another important criteria for qualitative analysis of gemstones is Aragonite and Realgar Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Aragonite and Realgar Optical Properties during the identification of gemstone. Specific gravity of Aragonite is 3.56 whereas that of Realgar is 3.56.