Hercynite and Rhodochrosite Physical Properties

Hercynite

Rhodochrosite

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1 Physical Properties

1.1 Tenacity

Not Available

Brittle

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

4.393.0-3.3

1 7.18

1.5 Fracture

ConchoidalGemdat.org, Uneven

Uneven, Conchoidal, Conchoidal to uneven, Brittle

1.6 Cleavage

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

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

1.7 Mohs Hardness

7.5-83.5-4

2 10

1.8 Chemical Composition

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

MnCO₃

Hercynite and Rhodochrosite Chemical Formula

While comparing Hercynite and Rhodochrosite 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 Hercynite and Rhodochrosite chemical formula.

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

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Hercynite and Rhodochrosite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Hercynite and Rhodochrosite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Hercynite and Rhodochrosite Optical Properties during the identification of gemstone. Specific gravity of Hercynite is 3.0-3.3 whereas that of Rhodochrosite is 3.0-3.3.