mineral

Rhodonite

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

Hardness: 5.5-6.5 on Mohs scale; Color: Pink to rosy red with black manganese oxide veins; Luster: Vitreous to pearly; Crystal Structure: Triclinic; Cleavage: Perfect; Specific Gravity: 3.5-3.7

Hardness: 5
Color: Pink to rosy red with black manganese oxide veins
Luster: Vitreous to pearly

Identified June 4, 2026More mineral →

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Physical properties

Hardness: 5.5-6.5 on Mohs scale; Color: Pink to rosy red with black manganese oxide veins; Luster: Vitreous to pearly; Crystal Structure: Triclinic; Cleavage: Perfect; Specific Gravity: 3.5-3.7

Formation & geological history

Forms in manganese-rich metamorphic rocks, often associated with hydrothermal activity and ore deposits. It is frequently found in skarns and contact metamorphic environments.

Uses & applications

Primarily used as an ornamental stone, for lapidary work (cabochons, beads), and occasionally as an ore of manganese. It is popular among crystal collectors and for making jewelry.

Geological facts

The name comes from the Greek word 'rhodon', meaning rose. It was once used in building the Moscow Metro and is the official state gemstone of Massachusetts.

Field identification & locations

Identified by its distinct pink color contrasted with dark/black dendritic patterns. Found in Australia (Broken Hill), Russia (Urals), Sweden, and the USA (New Jersey, Massachusetts). Collectors look for deep color and high contrast.