Pyroxmangite has the general chemical formula of MnSiO3.[Pinckney, Linda R, and Charles W Burnham. "High-Temperature crystal structure of pyroxmangite." American Mineralogist 73 (1988): 809–817. GeoScienceWorld. Web. 13 September 2010.] It is the high-pressure, low-temperature dimorph of rhodonite.[
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It was first described in 1913 and named for the mineral group, , and is known as the manganese member.
Pyroxmangite occurs in Metamorphism ore deposits rich in manganese. Associated minerals include spessartine, tephroite, alleghanyite, hausmannite, pyrophanite, alabandite, rhodonite and rhodochrosite.[
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