Rhodochrosite and Marcasite Physical Properties

Rhodochrosite

Marcasite

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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

4.80-4.90

1.5 Fracture

Uneven, Conchoidal, Conchoidal to uneven, Brittle

UnevenArthur Thomas, Gemstones (2009), UnevenArthur Thomas, Gemstones (2009), Uneven

1.6 Cleavage

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

{010} Indistinct

1.7 Mohs Hardness

3.5-4

6-6.5

1.8 Chemical Composition

MnCO₃

FeS 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

Rhodochrosite and Marcasite Chemical Formula

While comparing Rhodochrosite and Marcasite 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 Marcasite chemical formula.

Chemical formula of Rhodochrosite- MnCO₃
Chemical formula of Marcasite- FeS 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

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Rhodochrosite and Marcasite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Rhodochrosite and Marcasite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Rhodochrosite and Marcasite Optical Properties during the identification of gemstone. Specific gravity of Rhodochrosite is 4.80-4.90 whereas that of Marcasite is 4.80-4.90.