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Rhodochrosite
Rhodochrosite

Alexandrite
Alexandrite



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Rhodochrosite
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Alexandrite

Rhodochrosite and Alexandrite Physical Properties

1 Physical Properties
1.1 Tenacity
Brittle
Not Available
1.2 Solubility
Not Available
Not Available
1.3 Durability
Not Available
Not Available
1.4 Specific Gravity
3.0-3.33.69-3.81
Amber
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}
1,1 ; 3,2.
1.7 Mohs Hardness
3.5-48.5
Amber
2 10
1.8 Chemical Composition
MnCO3
BeAl 2 O 4

Rhodochrosite and Alexandrite Chemical Formula

While comparing Rhodochrosite and Alexandrite 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 Alexandrite chemical formula.

  • Chemical formula of Rhodochrosite- MnCO3
  • Chemical formula of Alexandrite- BeAl 2 O 4

Rhodochrosite and Alexandrite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Rhodochrosite and Alexandrite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Rhodochrosite and Alexandrite Optical Properties during the identification of gemstone. Specific gravity of Rhodochrosite is 3.69-3.81 whereas that of Alexandrite is 3.69-3.81.