Rhodochrosite

Category: Mineral species

 

Chemical formula: MnCO3

 

Strunz classification: 05.AB.05

 

Molar mass: 114.95 g/mol

 

Mohs scale hardness: 3.5-4

 

Specific gravity: 3.5 to 3.7

 

Density: 3.7 g/cm³

 

Optical properties: Uniaxial (-)

 

Birefringence: δ = 0.218

 

 

Done