Rhodochrosite and Dumortierite Physical Properties

Rhodochrosite

Dumortierite

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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

3.26-3.41

1.5 Fracture

Uneven, Conchoidal, Conchoidal to uneven, Brittle

Fibrous, ConchoidalWalter Schumann, Gemstones of the world (2001) More from other references

1.6 Cleavage

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

Distinct on {100}, poor on {110}; parting on {001}

1.7 Mohs Hardness

3.5-4

7-8.5

1.8 Chemical Composition

MnCO₃

AlAl₆O₃BSi₃O₁₈

Rhodochrosite and Dumortierite Chemical Formula

While comparing Rhodochrosite and Dumortierite 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 Dumortierite chemical formula.

Chemical formula of Rhodochrosite- MnCO₃
Chemical formula of Dumortierite- AlAl₆O₃BSi₃O₁₈

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Rhodochrosite and Dumortierite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Rhodochrosite and Dumortierite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Rhodochrosite and Dumortierite Optical Properties during the identification of gemstone. Specific gravity of Rhodochrosite is 3.26-3.41 whereas that of Dumortierite is 3.26-3.41.