Inosilicate (chain silicate)
Pyroxmangite forms a complete solid solution with pyroxferrite.
Specific gravity: 3.61 to 3.80
Hardness: 5½ to 6
Colour: Pale pink to rose, often red-brown due to alteration
Solubility: Insoluble in acids. Easily fusible to a black bead.
Pyroxmangite is the high-pressure, low-temperature polymorph of rhodonite.
It occurs typically in regionally metamorphosed and
contact metasomatic manganese-bearing rocks,
associated with spessartine, amphibole,
alabandite, rhodonite and
It has been recorded from a
it occurs associated with rhodonite and iron-rich
Common impurities: Al,Fe,Mg,Ca,Na,K,H2O
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