Rhodochrosite and Grossular Physical Properties

Rhodochrosite

Grossular

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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

3.55-3.73

1.5 Fracture

Uneven, Conchoidal, Conchoidal to uneven, Brittle

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

1.6 Cleavage

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

none

1.7 Mohs Hardness

3.5-4

7-7.5

1.8 Chemical Composition

MnCO₃

Ca 3Al 2(SiO 4) 3Arthur Thomas , Gemstones (2009)

Rhodochrosite and Grossular Chemical Formula

While comparing Rhodochrosite and Grossular 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 Grossular chemical formula.

Chemical formula of Rhodochrosite- MnCO₃
Chemical formula of Grossular- Ca 3Al 2(SiO 4) 3Arthur Thomas , Gemstones (2009)

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Rhodochrosite and Grossular Specific Gravity

Another important criteria for qualitative analysis of gemstones is Rhodochrosite and Grossular Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Rhodochrosite and Grossular Optical Properties during the identification of gemstone. Specific gravity of Rhodochrosite is 3.55-3.73 whereas that of Grossular is 3.55-3.73.