mineral

Rhodonite

Manganese Silicate (Mn,Fe,Mg,Ca)SiO3

Hardness: 5.5-6.5 on Mohs scale; Color: Pink, rose-red, or brownish-red; Luster: Vitreous to pearly; Crystal structure: Triclinic; Cleavage: Perfect; Specific gravity: 3.5-3.7

Hardness: 5
Color: Pink, rose-red, or brownish-red
Luster: Vitreous to pearly

Identified July 20, 2026More mineral →

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Physical properties

Hardness: 5.5-6.5 on Mohs scale; Color: Pink, rose-red, or brownish-red; Luster: Vitreous to pearly; Crystal structure: Triclinic; Cleavage: Perfect; Specific gravity: 3.5-3.7

Formation & geological history

Formed primarily in metamorphic rocks through the regional metamorphism of manganese-rich sedimentary rocks or as a result of hydrothermal activity in hydrothermal ore veins.

Uses & applications

Commonly used as an ornamental stone, for lapidary work including beads, cabochons, and small sculptures, and occasionally as a manganese ore.

Geological facts

The name is derived from the Greek word 'rhodon' meaning rose. It was once thought to be a protection stone that warded off negative energy. It is the official state gemstone of Massachusetts, USA.

Field identification & locations

Identified in the field by its distinct pinkish color often accompanied by black manganese oxide veins (dendritic patterns). Commonly found in Australia, Russia (the Urals), Sweden, Japan, and the USA.