mineral

Rhodochrosite

Manganese Carbonate (MnCO3)

Hardness: 3.5-4 on Mohs scale. Color: Rose-pink to raspberry-red with white or light pink concentric banding. Luster: Vitreous to pearly. Crystal system: Trigonal/Rhombohedral. Specific gravity: 3.5-3.7. Cleavage: Perfect rhombohedral in 3 directions.

Hardness: 3
Luster: Vitreous to pearly

Identified July 27, 2026More mineral →

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Physical properties

Formation & geological history

Forms primarily as a secondary mineral in hydrothermal vein deposits associated with silver, copper, and lead ores, as well as in metamorphic sedimentary rocks rich in manganese.

Uses & applications

Popular gemstone used in jewelry, decorative carvings, cabochons, and as a highly sought-after specimen for mineral collections. Historically mined as an ore of manganese.

Geological facts

Known as the 'Inca Rose' because the Incas believed it was the crystallized blood of their past rulers. It is also the national gemstone of Argentina and the state mineral of Colorado.

Field identification & locations

Identified by its distinctive bubblegum to deep pink hue, soft hardness (scratched by copper), perfect rhombohedral cleavage, and characteristic zig-zag or concentric band patterns when tumbled or carved. Famous sources include Argentina, Peru, South Africa, and Colorado (USA).