mineral

Polished rhodonite

Rhodonite, manganese inosilicate (MnSiO₃)

AI-generated identification · may be incorrect

Pink to reddish-brown, opaque, with black manganese-oxide veining; vitreous to pearly luster and commonly polished smooth. Mohs hardness 5.5–6.5; triclinic crystal system, variable cleavage, and specific gravity about 3.4–3.7.

Identified September 3, 2026More mineral →

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Physical properties

Formation & geological history

Forms mainly through metamorphism or hydrothermal alteration of manganese-rich rocks, commonly in Precambrian deposits; notable material comes from Russia, Australia, Peru, Brazil, and the United States.

Uses & applications

Used as a decorative stone, carved ornaments, cabochons, beads, and collector specimens; relatively soft and prone to scratching, so it is less common in everyday jewelry.

Geological facts

The distinctive pink color comes from manganese, while black dendritic or vein-like patterns are usually manganese oxides such as pyrolusite. The specimen appears to be a tumbled or polished piece.

Field identification & locations

Identify it by its opaque rose-pink/brown color, black veining, moderate heaviness, and lack of visible quartz-like translucency; distinguish it from rhodochrosite, which is typically brighter and often banded.