Rhodonite

Physical Properties

Hardness: 5.5-6.5 on Mohs scale; Color: Pink, rose-red, or brownish with black manganese oxide veins; Luster: Vitreous to pearly; Crystal structure: Triclinic; Specific Gravity: 3.5-3.7

Formation & Geological History

Formed in hydrothermal veins and metamorphic rocks rich in manganese. It often occurs as a result of regional or contact metamorphism of manganese ores.

Uses & Applications

Used as an ornamental stone, in jewelry (cabochons, beads), as decorative carvings, and occasionally as a minor ore of manganese.

Geological Facts

The name is derived from the Greek word 'rhodos', meaning rose. It is often confused with rhodochrosite, but rhodonite is much harder and typically has black dendritic veins rather than white banding.

Field Identification & Locations

Identified in the field by its distinct pinkish color paired with black manganese oxide inclusions and its relatively high hardness compared to similar-looking carbonates. Common locations include Russia, Sweden, Australia, and Brazil.

Identified on: 5/5/2026

Mode: Standard