mineral

Pink-and-gray rhodonite

Rhodonite, manganese inosilicate (MnSiO₃), commonly with manganese oxides

AI-generated identification · may be incorrect

Usually opaque pink to rose-red with black, gray, or brown dendritic veins; vitreous to pearly luster, triclinic crystals, imperfect cleavage, Mohs hardness 5.5–6.5, and specific gravity about 3.4–3.7. The pictured piece is polished and shaped, likely a cabochon or ornamental carving.

Identified September 16, 2026More mineral →

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Physical properties

Formation & geological history

Forms mainly in manganese-rich metamorphic rocks and hydrothermal deposits through alteration of manganese silicates and carbonates. Deposits range from Precambrian to younger geological ages.

Uses & applications

Used as a lapidary stone, cabochons, beads, carvings, and decorative objects; historically, massive rhodonite has been used as a manganese ore and architectural stone.

Geological facts

Black markings are manganese-oxide minerals, especially pyrolusite or braunite, producing the characteristic veined appearance.

Field identification & locations

Identify by its saturated pink color, black veining, opacity, moderate hardness, and relatively high density; common sources include Russia, Australia, Sweden, Peru, South Africa, and the United States. A polished specimen is best confirmed by hardness, density, and laboratory testing.