Rhodochrosite and Aragonite Physical Properties

Rhodochrosite

Aragonite

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1 Physical Properties

1.1 Tenacity

Brittle

1.2 Solubility

Not Available

Dilute acid

1.3 Durability

Not Available

1.4 Specific Gravity

3.0-3.3

2.93-2.96

1.5 Fracture

Uneven, Conchoidal, Conchoidal to uneven, Brittle

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

1.6 Cleavage

On {10 1 1} perfect; parting on {10 1 2}

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

1.7 Mohs Hardness

3.5-4

1.8 Chemical Composition

MnCO₃

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

Rhodochrosite and Aragonite Chemical Formula

While comparing Rhodochrosite and Aragonite 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 Rhodochrosite and Aragonite chemical formula.

Chemical formula of Rhodochrosite- MnCO₃
Chemical formula of Aragonite- CaCO 3Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

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Rhodochrosite and Aragonite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Rhodochrosite and Aragonite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Rhodochrosite and Aragonite Optical Properties during the identification of gemstone. Specific gravity of Rhodochrosite is 2.93-2.96 whereas that of Aragonite is 2.93-2.96.