Rhodochrosite and Dolomite Physical Properties

Rhodochrosite

Dolomite

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1 Physical Properties

1.1 Tenacity

Brittle

1.2 Solubility

Not Available

Poorly soluble in dilute HCl

1.3 Durability

Not Available

1.4 Specific Gravity

3.0-3.32.80-2.95

1 7.18

1.5 Fracture

Uneven, Conchoidal, Conchoidal to uneven, Brittle

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

1.6 Cleavage

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

Perfect on {10 1 1}, rhombohedral cleavage

1.7 Mohs Hardness

3.5-43.5-4

2 10

1.8 Chemical Composition

MnCO₃

CaMg(CO 3) 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

Rhodochrosite and Dolomite Chemical Formula

While comparing Rhodochrosite and Dolomite 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 Dolomite chemical formula.

Chemical formula of Rhodochrosite- MnCO₃
Chemical formula of Dolomite- CaMg(CO 3) 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

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Rhodochrosite and Dolomite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Rhodochrosite and Dolomite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Rhodochrosite and Dolomite Optical Properties during the identification of gemstone. Specific gravity of Rhodochrosite is 2.80-2.95 whereas that of Dolomite is 2.80-2.95.