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Rhodochrosite
Rhodochrosite

Polyhalite
Polyhalite



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Rhodochrosite
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Polyhalite

Rhodochrosite and Polyhalite Physical Properties

1 Physical Properties
1.1 Tenacity
Brittle
Brittle
1.2 Solubility
Not Available
Soluble
1.3 Durability
Not Available
Not Available
1.4 Specific Gravity
3.0-3.3
2.78
1.5 Fracture
Uneven, Conchoidal, Conchoidal to uneven, Brittle
Conchoidal, Brittle
1.6 Cleavage
On {10 1 1} perfect; parting on {10 1 2}
Perfect on {10 1 }; parting on {010}
1.7 Mohs Hardness
3.5-4
3.5
1.8 Chemical Composition
MnCO3
Not Available

Rhodochrosite and Polyhalite Chemical Formula

While comparing Rhodochrosite and Polyhalite 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 Polyhalite chemical formula.

  • Chemical formula of Rhodochrosite- MnCO3
  • >

Rhodochrosite and Polyhalite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Rhodochrosite and Polyhalite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Rhodochrosite and Polyhalite Optical Properties during the identification of gemstone. Specific gravity of Rhodochrosite is 2.78 whereas that of Polyhalite is 2.78.