from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. A rare iron sulfate mineral that forms violet or white triclinic crystals.

from The Century Dictionary and Cyclopedia

  • n. A hydrous sulphate of iron, occurring in tabular monoclinic crystals of a reddish-violet color: it is found in Chili.


F A von Quenstedt, German mineralogist, and -ite. (Wiktionary)


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