Rhodochrosite and Petalite Physical Properties
Solubility
Not Available
insoluble
Durability
Not Available
Not Available
Specific Gravity
3.0-3.3
2.40
Fracture
Uneven, Conchoidal, Conchoidal to uneven, Brittle
Subconchoidal, ConchoidalWalter Schumann, Gemstones of the world (2001) More from other references, Brittle, Conchoidal
Cleavage
On {10 1 1} perfect; parting on {10 1 2}
Perfect on {001}, poor on {201} with 38.5° angle between the two
Mohs Hardness
3.5-4
6-6.5
Chemical Composition
MnCO3
LiAlSi 4O 10Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Rhodochrosite and Petalite Chemical Formula
While comparing Rhodochrosite and Petalite 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 Petalite chemical formula.
- Chemical formula of Rhodochrosite- MnCO3
- Chemical formula of Petalite- LiAlSi 4O 10Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Rhodochrosite and Petalite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Rhodochrosite and Petalite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Rhodochrosite and Petalite Optical Properties during the identification of gemstone. Specific gravity of Rhodochrosite is 2.40 whereas that of Petalite is 2.40.