mineral
Rhodochrosite
Manganese carbonate (MnCO3)
AI-generated identification · may be incorrectHardness: 3.5-4.0 (Mohs scale), Color: Pink to rose-red, Luster: Vitreous to pearly, Crystal structure: Trigonal, Cleavage: Perfect rhombohedral, Specific gravity: 3.5-3.7
- Hardness
- 3
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Physical properties
Hardness: 3.5-4.0 (Mohs scale), Color: Pink to rose-red, Luster: Vitreous to pearly, Crystal structure: Trigonal, Cleavage: Perfect rhombohedral, Specific gravity: 3.5-3.7
Formation & geological history
Forms as a hydrothermal vein mineral in low-temperature ore deposits, or as a secondary mineral in sedimentary manganese deposits. Often found in association with silver and copper minerals.
Uses & applications
Used as a semi-precious gemstone in jewelry (cabochons and beads), a minor ore of manganese, and highly prized by mineral collectors for its unique pink banding.
Geological facts
Known as the 'Inca Rose' by ancient civilizations; it is the state mineral of Colorado, and the famous 'Sweet Home Mine' produced the world's most iconic cherry-red specimens.
Field identification & locations
Identified by its characteristic raspberry pink to rose color and distinctive white banding. In the field, look for its softness (scratches with a knife) and reaction to warm dilute acid.
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