Mineral · Pyroxenoid
Rhodonite
CaMn3Mn(Si5O15)
Rhodonite is pink manganese silicate, sold massive with black manganese-oxide veining from Australia, Russia and Brazil for carving, and as rare red crystals from Broken Hill (Australia), Franklin (New Jersey) and Peru's Huanzalá. Broken Hill and Huanzalá crystals are collector prizes. It is harder than rhodochrosite and does not effervesce.
| Formula | CaMn3Mn(Si5O15) |
|---|---|
| IMA status | approved |
| Crystal system | Triclinic |
| Mohs hardness | 5.5–6.5 |
| Group | Pyroxenoid |
| Type locality | Harz Mountains, Germany |
| Streak | White |
| Specific gravity | 3.6 |
| Reference list | IMA List of Minerals (RRUFF) — verify formula and status against the current list |
Elsewhere
Cite this article
Stratum Study. "Rhodonite" (Mineral). Stratum Study pack 2026.09, as of 2026-09-19. https://stratum.black/study/minerals/rhodonite. Accessed 2026-09-20.
@misc{stratum-rhodonite,
title = {Rhodonite},
author = {{Stratum Study}},
howpublished = {\url{https://stratum.black/study/minerals/rhodonite}},
year = {2026},
note = {Mineral article, Stratum Study pack 2026.09, as of 2026-09-19; sources: stratum, wikidata, commons. Accessed 2026-09-20.}
} Citations carry the pack version and the article's as-of date so they resolve to the same text later. The facts themselves belong to the sources listed below; cite those for the science.