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Rhodochrosite and Opal Physical Properties


Opal and Rhodochrosite Physical Properties


Physical Properties

Tenacity
Brittle   
BrittleWalter Schumann   

Solubility
Not Available   
hot salt water   

Durability
Not Available   
Not Available   

Specific Gravity
3.0-3.3   
1.98-2.25   

Fracture
Uneven, Conchoidal, Conchoidal to uneven, Brittle   
Conchoidal, Conchoidal, Gemstones of the world (2001) More from other references, Brittle   

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

Mohs Hardness
3.5-4   
5-6.5   

Chemical Composition
MnCO3   
SiO2 · nH2O   

Optical Properties >>
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Rhodochrosite and Opal Chemical Formula

While comparing Rhodochrosite and Opal 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 Opal chemical formula.

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Rhodochrosite and Opal Specific Gravity

Another important criteria for qualitative analysis of gemstones is Rhodochrosite and Opal Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Rhodochrosite and Opal Optical Properties during the identification of gemstone. Specific gravity of Rhodochrosite is 1.98-2.25 whereas that of Opal is 1.98-2.25.

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