Rhodochrosite and Umbalite Physical Properties

Rhodochrosite

Umbalite

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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

3.62-4.33

1.5 Fracture

Uneven, Conchoidal, Conchoidal to uneven, Brittle

Uneven, Uneven, ConchoidalGemdat.org, Management Team (2012)

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 3Al 2(SiO 4) 3 -Mn2+3Al 2(SiO 4) 3Gemdat.org , Management Team (2012)

Rhodochrosite and Umbalite Chemical Formula

While comparing Rhodochrosite and Umbalite 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 Umbalite chemical formula.

Chemical formula of Rhodochrosite- MnCO₃
Chemical formula of Umbalite- Mg 3Al 2(SiO 4) 3 -Mn2+3Al 2(SiO 4) 3Gemdat.org , Management Team (2012)

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Rhodochrosite and Umbalite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Rhodochrosite and Umbalite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Rhodochrosite and Umbalite Optical Properties during the identification of gemstone. Specific gravity of Rhodochrosite is 3.62-4.33 whereas that of Umbalite is 3.62-4.33.