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Rhodochrosite
Rhodochrosite

Star Ruby
Star Ruby



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Rhodochrosite
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Star Ruby

Rhodochrosite and Star Ruby Physical Properties

Physical Properties

Tenacity

Brittle
-

Solubility

-
-

Durability

-
-

Specific Gravity

3.0-3.33.95-4.10
1 7.18
👆🏻

Fracture

Uneven, Conchoidal, Conchoidal to uneven
Uneven

Cleavage

On {10 1 1} perfect; parting on {10 1 2}
None

Mohs Hardness

3.5-4-9999
2 10
👆🏻

Chemical Composition

MnCO3
Al 2O 3Michael O’Donoghue , Gems, Sixth Edition (2006)

Rhodochrosite and Star Ruby Chemical Formula

While comparing Rhodochrosite and Star Ruby 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 Star Ruby chemical formula.

  • Chemical formula of Rhodochrosite- MnCO3
  • Chemical formula of Star Ruby- Al 2O 3Michael O’Donoghue , Gems, Sixth Edition (2006)

Rhodochrosite and Star Ruby Specific Gravity

Another important criteria for qualitative analysis of gemstones is Rhodochrosite and Star Ruby Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Rhodochrosite and Star Ruby Optical Properties during the identification of gemstone. Specific gravity of Rhodochrosite is 3.95-4.10 whereas that of Star Ruby is 3.95-4.10.