Rhodochrosite and Chrome-Chalcedony Physical Properties

Rhodochrosite

Chrome-Chalcedony

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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

3.0-3.32.55-2.70

1 7.18

1.5 Fracture

Uneven, Conchoidal, Conchoidal to uneven, Brittle

Not Available

1.6 Cleavage

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

Not Available

1.7 Mohs Hardness

3.5-46.5-7

2 10

1.8 Chemical Composition

MnCO₃

SiO 2 (with trace Cr minerals) Gemdat.org , Management Team (2012)

Rhodochrosite and Chrome-Chalcedony Chemical Formula

While comparing Rhodochrosite and Chrome-Chalcedony 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 Chrome-Chalcedony chemical formula.

Chemical formula of Rhodochrosite- MnCO₃
Chemical formula of Chrome-Chalcedony- SiO 2 (with trace Cr minerals) Gemdat.org , Management Team (2012)

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Rhodochrosite and Chrome-Chalcedony Specific Gravity

Another important criteria for qualitative analysis of gemstones is Rhodochrosite and Chrome-Chalcedony Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Rhodochrosite and Chrome-Chalcedony Optical Properties during the identification of gemstone. Specific gravity of Rhodochrosite is 2.55-2.70 whereas that of Chrome-Chalcedony is 2.55-2.70.