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from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. An isometric-hexoctahedral black mineral containing aluminum, iron, and oxygen.

from The Century Dictionary and Cyclopedia

  • n. A mineral of the spinel group, containing alumina and iron, found in the Bohemian (Hercynian) Forest.


-ite (Wiktionary)


  • The black network within the fayalite crystals is of a second mineral, an iron-aluminum spinel called hercynite, that crystallized at the same time as the fayalite, giving rise to complex intergrowths of the two minerals.

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