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Rhodochrosite and Andalusite Physical Properties


Andalusite and Rhodochrosite Physical Properties


Physical Properties

Tenacity
Brittle   
Not Available   

Solubility
Not Available   
Not Available   

Durability
Not Available   
Not Available   

Specific Gravity
3.0-3.3   
3.05-3.21   

Fracture
Uneven, Conchoidal, Conchoidal to uneven, Brittle   
Uneven, Subconchoidal, Uneven, Subconchoidal, Splintery, UnevenArthur Thomas, Gemstones (2009)   

Cleavage
On {10 1 1} perfect; parting on {10 1 2}   
Good on {110}, poor on {100}   

Mohs Hardness
3.5-4   
7.5   

Chemical Composition
MnCO3   
Al 2SiO 5Michael O’Donoghue , Gems, Sixth edition (2006) More from other references   

Optical Properties >>
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Rhodochrosite and Andalusite Chemical Formula

While comparing Rhodochrosite and Andalusite 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 Andalusite chemical formula.

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Rhodochrosite and Andalusite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Rhodochrosite and Andalusite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Rhodochrosite and Andalusite Optical Properties during the identification of gemstone. Specific gravity of Rhodochrosite is 3.05-3.21 whereas that of Andalusite is 3.05-3.21.

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