from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. A manganese phosphate mineral with a striking purple colour.

from The Century Dictionary and Cyclopedia

  • n. A hydrous manganic ferric phosphate ((Mn,Fe)2O3.P2O5. H2O) occurring in small irregular masses of a purple or dark red color: found in Gaston County, North Carolina, and also in San Diego County, California, and elsewhere.


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