from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. A hydrated iron oxide related to hematite

from The Century Dictionary and Cyclopedia

  • n. A variety of goethite occurring in columnar forms with a scaly or fibrous structure.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • n. a red to reddish brown mineral consisting of iron oxide hydroxide; often found in iron ores together with goethite


Sorry, no etymologies found.


  • There are various subtypes: goethite (needle iron ore, pyrrhosiderite): a-FeO (OH), lepidocrocite (ruby glance): b-FeO (OH), limonite: (by appearance) amorphous.

    6. Purifying absorbent


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