Dolomite and Rhodochrosite Physical Properties

Dolomite

Rhodochrosite

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1 Physical Properties

1.1 Tenacity

Brittle

1.2 Solubility

Poorly soluble in dilute HCl

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

2.80-2.953.0-3.3

1 7.18

1.5 Fracture

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

Uneven, Conchoidal, Conchoidal to uneven, Brittle

1.6 Cleavage

Perfect on {10 1 1}, rhombohedral cleavage

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

1.7 Mohs Hardness

3.5-43.5-4

2 10

1.8 Chemical Composition

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

MnCO₃

Dolomite and Rhodochrosite Chemical Formula

While comparing Dolomite and Rhodochrosite 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 Dolomite and Rhodochrosite chemical formula.

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

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Dolomite and Rhodochrosite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Dolomite and Rhodochrosite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Dolomite and Rhodochrosite Optical Properties during the identification of gemstone. Specific gravity of Dolomite is 3.0-3.3 whereas that of Rhodochrosite is 3.0-3.3.