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Rhodochrosite and Sillimanite Physical Properties


Sillimanite and Rhodochrosite Physical Properties


Physical Properties

Tenacity
Brittle   
Tough   

Solubility
Not Available   
Not Available   

Durability
Not Available   
Not Available   

Specific Gravity
3.0-3.3   
3.20-3.26   

Fracture
Uneven, Conchoidal, Conchoidal to uneven, Brittle   
Splintery   

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

Mohs Hardness
3.5-4   
6-7.5   

Chemical Composition
MnCO3   
Al 2SiO 5Michael O’Donoghue , Gems, Sixth Edition (2006)   

Optical Properties >>
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Rhodochrosite and Sillimanite Chemical Formula

While comparing Rhodochrosite and Sillimanite 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 Sillimanite chemical formula.

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Rhodochrosite and Sillimanite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Rhodochrosite and Sillimanite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Rhodochrosite and Sillimanite Optical Properties during the identification of gemstone. Specific gravity of Rhodochrosite is 3.20-3.26 whereas that of Sillimanite is 3.20-3.26.

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