Rhodochrosite and Hardystonite Physical Properties

Rhodochrosite

Hardystonite

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1 Physical Properties

1.1 Tenacity

Brittle

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

3.0-3.3

3.396-3.443

1.5 Fracture

Uneven, Conchoidal, Conchoidal to uneven, Brittle

Brittle, Metallic

1.6 Cleavage

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

[001] good, [100] and [110] fair

1.7 Mohs Hardness

3.5-4

3-4

1.8 Chemical Composition

MnCO₃

Ca 2ZnSi 2O 7Anthony et al , Handbook of mineralogy (2001)

Rhodochrosite and Hardystonite Chemical Formula

While comparing Rhodochrosite and Hardystonite 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 Hardystonite chemical formula.

Chemical formula of Rhodochrosite- MnCO₃
Chemical formula of Hardystonite- Ca 2ZnSi 2O 7Anthony et al , Handbook of mineralogy (2001)

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Rhodochrosite and Hardystonite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Rhodochrosite and Hardystonite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Rhodochrosite and Hardystonite Optical Properties during the identification of gemstone. Specific gravity of Rhodochrosite is 3.396-3.443 whereas that of Hardystonite is 3.396-3.443.