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from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. A soft monoclinic mineral with the chemical formula MnSO4·(H2O).

from The Century Dictionary and Cyclopedia

  • n. Hydrous manganese sulphate (MnSO4 + H2O) which occurs in whitish or reddish amorphous stalactitie forms: from Felsö-bánya, Hungary.


Ignaz Szmik, Romanian mining official, and -ite. (Wiktionary)


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