mineral

Rhodonite

Rhodonite (Mn2+SiO3)

Hardness: 5.5-6.5 on Mohs scale; Color: Pink to rose-red with black manganese oxide inclusions (dendritic patterns); Luster: Vitreous to pearly; Crystal structure: Triclinic; Cleavage: Perfect in two directions; Specific gravity: 3.5-3.7.

Hardness: 5
Luster: Vitreous to pearly

Identified April 12, 2026More mineral →

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Physical properties

Formation & geological history

Formed through regional or contact metamorphism and hydrothermal processes. It is typically found in manganese ores or as a metamorphic alteration product of other manganese-rich minerals.

Uses & applications

Primary use is lapidary for carvings, beads, cabochons, and ornamental objects. It is also a minor ore of manganese and a popular collector's mineral.

Geological facts

The name comes from the Greek word 'rhodos', meaning rose. It was often given as a traveler's stone in ancient times to ward off danger. It was designated as the state gemstone of Massachusetts in 1979.

Field identification & locations

Identify by its characteristic pink color paired with sharp, black, web-like veins of manganese oxide. Commonly found in Russia (Ural Mountains), Australia, Brazil, Canada, and the USA (New Jersey and Massachusetts).