Rock Identifier
Rhodonite (Inosilicate (Mn,Fe,Mg,Ca)SiO3) — mineral
mineral

Rhodonite

Inosilicate (Mn,Fe,Mg,Ca)SiO3

AI-generated identification · may be incorrect

Hardness of 5.5 to 6.5 on the Mohs scale with a rose-pink to brownish-red color and characteristic black manganese oxide dendrites. It exhibits vitreous to pearly luster and triclinic crystal system.

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Physical properties

Hardness of 5.5 to 6.5 on the Mohs scale with a rose-pink to brownish-red color and characteristic black manganese oxide dendrites. It exhibits vitreous to pearly luster and triclinic crystal system.

Formation & geological history

Formed through the metamorphism of manganese-rich sedimentary deposits and hydrothermal replacement processes.

Uses & applications

Widely used as a semi-precious gemstone for cabochons, beads, decorative carvings, and polished display towers.

Geological facts

The name comes from the Greek word rhodon, meaning rosy, in reference to its characteristic pink color. It is often designated as the official state gemstone of Massachusetts.

Field identification & locations

Easily identified by its vivid pink background contrasting sharply with stark black dendrites or veins of manganese oxide. Primary sources include Russia, Australia, Peru, and the United States.