Aragonite and Riebeckite Physical Properties

Aragonite

Riebeckite

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1 Physical Properties

1.1 Tenacity

Brittle

1.2 Solubility

Dilute acid

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

2.93-2.963.28-3.44

1 7.18

1.5 Fracture

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

Uneven, Splintery, Brittle

1.6 Cleavage

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

Perfect on {110}, intersecting at 56° and 124°; partings on {100} and {010}

1.7 Mohs Hardness

3.5-45.0-6.0

2 10

1.8 Chemical Composition

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

Not Available

Aragonite and Riebeckite Chemical Formula

While comparing Aragonite and Riebeckite 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 Riebeckite chemical formula.

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

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Aragonite and Riebeckite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Aragonite and Riebeckite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Aragonite and Riebeckite Optical Properties during the identification of gemstone. Specific gravity of Aragonite is 3.28-3.44 whereas that of Riebeckite is 3.28-3.44.