Rhodochrosite and Hercynite Physical Properties

Rhodochrosite

Hercynite

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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

3.0-3.34.39

1 7.18

1.5 Fracture

Uneven, Conchoidal, Conchoidal to uneven, Brittle

ConchoidalGemdat.org, Uneven

1.6 Cleavage

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

{111} Indistinct, {111} Indistinct, {111} Indistinct

1.7 Mohs Hardness

3.5-47.5-8

2 10

1.8 Chemical Composition

MnCO₃

Fe2+ Al 2O 4Gemdat.org , Management Team (2012)

Rhodochrosite and Hercynite Chemical Formula

While comparing Rhodochrosite and Hercynite 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 Hercynite chemical formula.

Chemical formula of Rhodochrosite- MnCO₃
Chemical formula of Hercynite- Fe2+ Al 2O 4Gemdat.org , Management Team (2012)

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Rhodochrosite and Hercynite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Rhodochrosite and Hercynite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Rhodochrosite and Hercynite Optical Properties during the identification of gemstone. Specific gravity of Rhodochrosite is 4.39 whereas that of Hercynite is 4.39.