mineral

Rhodonite

Rhodonite (Mn,Fe,Mg,Ca)SiO3

AI-generated identification · may be incorrect

Hardness: 5.5-6.5 Mohs; Color: Rose-pink to brownish-red with black manganese oxide inclusions; Luster: Vitreous to pearly; Crystal structure: Triclinic; Cleavage: Perfect; Specific gravity: 3.5-3.7

Hardness: 5
Luster: Vitreous to pearly

Identified July 9, 2026More mineral →

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Physical properties

Hardness: 5.5-6.5 Mohs; Color: Rose-pink to brownish-red with black manganese oxide inclusions; Luster: Vitreous to pearly; Crystal structure: Triclinic; Cleavage: Perfect; Specific gravity: 3.5-3.7

Formation & geological history

Forms in manganese-rich metamorphic rocks, hydrothermal veins, and contact metamorphic deposits. Occurs often as a result of regional or contact metamorphism of manganese carbonates or silicates.

Uses & applications

Commonly used as a gemstone for beads, cabochons, and ornamental carvings. Historically an ore of manganese.

Geological facts

The name comes from the Greek word 'rhodos', meaning rose. It was once believed to help foster brotherly love and was used to make sarcophagi for Russian Czars.

Field identification & locations

Identify in the field by its distinct pink color often paired with black 'dendritic' or veined manganese oxide inclusions. Found in Australia, Brazil, Russia, Sweden, and the USA (Massachusetts).