What is Rhodochrosite?


Rhodochrosite is a manganese carbonate mineral that ranges in color from light pink to bright red. It’s primarily found in Argentina, Peru, and Colorado, USA. Rhodochrosite is often used as a gemstone and is popular for its unique pink and red color.

Rhodochrosite is a vibrant gemstone that comes in shades of pink and red. Its unique appearance and color make it a popular choice for jewelry and decorative items, especially rings and pendants.

Gemstone Properties

Chemical ClassificationInorganic - Carbonate
ColorRanges from light pink to deep rose-red, often with white or lighter colored banding.
LusterVitreous to pearly.
TransparencyTranslucent to opaque.
OccurrenceArgentina, USA (especially Colorado), and South Africa.
FormationTypically found in hydrothermal veins and cavities, often associated with silver deposits.
DiaphaneityTransparent to translucent
CleavagePerfect in one direction
Mohs Hardness3.5 to 4
Specific Gravity3.45 - 3.70
Diagnostic PropertiesPink to red with banding.
Chemical CompositionMnCO3
PleochroismNot observed in rhodochrosite.
Crystal SystemTrigonal
Optical PropertiesBiaxial (+)
Refractive Index1.597 - 1.817
2V angleMeasured: 50° to 65°
DispersionNot typically noted for its dispersion.