Rhodochrosite and Cordierite Iolite Physical Properties

Rhodochrosite

Cordierite Iolite

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1 Physical Properties

1.1 Tenacity

Brittle

Not Available

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

3.0-3.3

2.56-2.66

1.5 Fracture

Uneven, Conchoidal, Conchoidal to uneven, Brittle

Uneven, Uneven, ConchoidalWalter Schumann, Gemstones of the world (2001)

1.6 Cleavage

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

Not Available

1.7 Mohs Hardness

3.5-4

7-7.5

1.8 Chemical Composition

MnCO₃

Mg 2Al 4Si 5O 18Ulrich Henn and Claudio C.

Rhodochrosite and Cordierite Iolite Chemical Formula

While comparing Rhodochrosite and Cordierite Iolite 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 Cordierite Iolite chemical formula.

Chemical formula of Rhodochrosite- MnCO₃
Chemical formula of Cordierite Iolite- Mg 2Al 4Si 5O 18Ulrich Henn and Claudio C.

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Rhodochrosite and Cordierite Iolite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Rhodochrosite and Cordierite Iolite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Rhodochrosite and Cordierite Iolite Optical Properties during the identification of gemstone. Specific gravity of Rhodochrosite is 2.56-2.66 whereas that of Cordierite Iolite is 2.56-2.66.