mineral

Rhodonite

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

Hardness: 5.5-6.5 on Mohs scale; Color: Pink to rose-red often with black manganese oxide veins; Luster: Vitreous to pearly; Crystal structure: Triclinic; Cleavage: Perfect in two directions.

Hardness: 5
Color: Pink to rose-red often with black manganese oxide veins
Luster: Vitreous to pearly

Identified March 31, 2026More mineral →

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Physical properties

Hardness: 5.5-6.5 on Mohs scale; Color: Pink to rose-red often with black manganese oxide veins; Luster: Vitreous to pearly; Crystal structure: Triclinic; Cleavage: Perfect in two directions.

Formation & geological history

Formed in metamorphic rocks rich in manganese, and in some igneous processes. It is often found associated with ore deposits of lead, zinc, and silver.

Uses & applications

Used primarily as a gemstone, for lapidary work like beads, cabochons, and ornamental carvings. Historically used as a manganese ore.

Geological facts

The name comes from the Greek word 'rhodon', meaning rose. It is often confused with rhodochrosite, but rhodonite is distinguished by its black dendrite inclusions and higher hardness.

Field identification & locations

Identify in the field by its distinct rose-pink color paired with black spider-web-like veins of manganese oxide. Found in Russia, Brazil, USA (Massachusetts), and Australia.