Gemstone profile and identification guide
Rhodonite
Rhodonite is a manganese silicate gemstone recognized by pink body colour and dark manganese-oxide veining.
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Overview
Rhodonite is a manganese silicate gemstone recognized by pink body colour and dark manganese-oxide veining.
Did you know? Rhodonite was historically used in Russian decorative stonework and objets d art.
Use this profile as a collector reference and educational guide for quick on-page comparison, then validate with the interactive identification system.
Identification
Name: Rhodonite
Scientific classification: Silicate (Rhodonite)
Hardness: 6 Mohs
Transparency: opaque
Lustre: vitreous
Crystal system: Triclinic
Primary colour: Pink
Secondary colour: Rose Pink
Colour family: Pinks
Pink manganese-rich body colour plus black veining and triclinic mineral properties are diagnostic.
Verification Status
Status: verified-core-fields
Reference priority: GIA, Gem-A, Mindat, International Gem Society
Core identity, locality, and physical-property fields reviewed against standard gemological references.
Values are given as practical gemological ranges where appropriate.
Physical Properties
Hardness category: hard
Hardness value: 6 Mohs
Chemical composition: Manganese inosilicate [MnSiO3]
Crystal system: Triclinic
Common locations: Peru, Brazil, Australia, Sweden, Russia
Learn more: Gem-A gemstone education resources.
Colour Variations
Pink to rose manganese silicate, commonly with black manganese-oxide veining.
Optical effects: None specified in the current dataset.
Detailed Gemology
Mineral species: Rhodonite
Mineral group: Pyroxenoid inosilicate group
Chemical formula: Manganese inosilicate [MnSiO3]
Mohs hardness: 6
Crystal system: Triclinic
Lustre: vitreous
Transparency: opaque
Streak: White
Cleavage: Perfect in two directions
Fracture: Uneven to splintery
Specific gravity: 3.40-3.70
Refractive index: 1.711-1.744
Optical phenomena: None typically diagnostic
Colour range: Pink to rose-red with black veining
Common inclusions: Manganese oxide veins, calcite, sulfides
Geological environment: Manganese-rich metamorphic and hydrothermal deposits
Principal mining regions: Peru, Brazil, Australia, Sweden, Russia
Important commercial sources: Gem-quality rhodonite is commercially sourced from Peru and Brazil, with additional material from Australia and Russia
Historical significance: Used as decorative and lapidary material in Russia and Europe.
Common treatments: Impregnation and waxing may be used in porous material.
Synthetic or imitation forms: Dyed stones and composites can imitate rhodonite.
Common look-alikes: Rhodochrosite, pink opal, dyed calcite
Jewellery uses: Rhodonite is used chiefly for Cabochons and carvings where contrast veining is visually important.. In the trade it is commonly fashioned as cabochons, beads, carvings, and polished ornamental pieces, with Mohs hardness 6 guiding suitable jewellery applications.
Care recommendations: Moderate hardness with cleavage; avoid heavy abrasion and harsh chemicals.
Cross-check profile data with GIA Gem Encyclopedia and Mindat entry for Rhodonite.
Formation
Forms in metamorphosed manganese-rich deposits and contact-metamorphic environments.
Origin
Gem-quality rhodonite is commercially sourced from Peru and Brazil, with additional material from Australia and Russia
Uses
Best for: Rhodonite is used chiefly for Cabochons and carvings where contrast veining is visually important.. In the trade it is commonly fashioned as cabochons, beads, carvings, and polished ornamental pieces, with Mohs hardness 6 guiding suitable jewellery applications.
Ideal uses: Cabochons and carvings where contrast veining is visually important.
Care
Moderate hardness with cleavage; avoid heavy abrasion and harsh chemicals.
Need another candidate? Use advanced gemstone search or return to the identification guide.
Related gemstones by colour
Related gemstones by hardness
Commonly confused gemstones
Rhodonite FAQ
How can I identify Rhodonite?
Compare hardness (6 Mohs), crystal system (Triclinic), colour profile, and lustre (vitreous) with your sample. Then cross-check related gemstones listed above.
What colour range does Rhodonite appear in?
Pink to rose manganese silicate, commonly with black manganese-oxide veining.
Where is Rhodonite commonly used?
Cabochons and carvings where contrast veining is visually important.. For maintenance, follow the care guidance in this profile.
Scientific References
GIA: general gemstone identity (reviewed) - Batch 01 factual verification pass.
Gem-A: gemological terminology and testing references (reviewed) - Batch 01 factual verification pass.
Mindat: mineral species and principal localities (reviewed) - Batch 01 factual verification pass.
International Gem Society: gem trade context and treatment overview (reviewed) - Batch 01 factual verification pass.