mineral

Rodonite

Rhodonite (MnSiO3)

Hardness: 5.5 to 6.5 on the Mohs scale. Color: Rose-pink to brownish-red with characteristic black veins or patches of manganese oxide. Luster: Vitreous to pearly. Crystal structure: Triclinic. Cleavage: Good, perfect in two directions. Specific gravity: 3.4 to 3.7.

Hardness: 5
Luster: Vitreous to pearly

Identified July 31, 2026More mineral →

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Physical properties

Formation & geological history

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

Uses & applications

Primarily used as an ornamental stone, for making beads, cabochons, carvings, and sometimes as a minor ore of manganese.

Geological facts

Rhodonite derives its name from the Greek word 'rhodos', meaning rose, in reference to its characteristic pink color. The black dendritic inclusions are typically composed of dark manganese oxides like pyrolusite or similar minerals.

Field identification & locations

Easily identified by its distinct rose-pink body color strongly contrasted with black dendritic veins. Commonly sourced from localities in Russia, Australia, Sweden, Canada, and the United States (such as Massachusetts and California).