Rhodochrosite and Spinel Physical Properties

Rhodochrosite

Spinel

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1 Physical Properties

1.1 Tenacity

Brittle

Not Available

1.2 Solubility

Not Available

none

1.3 Durability

Not Available

1.4 Specific Gravity

3.0-3.3

3.64-3.66

1.5 Fracture

Uneven, Conchoidal, Conchoidal to uneven, Brittle

Conchoidal, Uneven, ConchoidalArthur Thomas, Gemstones (2009)

1.6 Cleavage

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

None, but may exhibit slight parting

1.7 Mohs Hardness

3.5-4

1.8 Chemical Composition

MnCO₃

MgAl₂O₄

Rhodochrosite and Spinel Chemical Formula

While comparing Rhodochrosite and Spinel 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 Spinel chemical formula.

Chemical formula of Rhodochrosite- MnCO₃
Chemical formula of Spinel- MgAl₂O₄

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Rhodochrosite and Spinel Specific Gravity

Another important criteria for qualitative analysis of gemstones is Rhodochrosite and Spinel Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Rhodochrosite and Spinel Optical Properties during the identification of gemstone. Specific gravity of Rhodochrosite is 3.64-3.66 whereas that of Spinel is 3.64-3.66.