Definitions

from The Century Dictionary.

  • noun A red or ocher-yellow mineral from Falun in Sweden, consisting of the hydrous sulphates of iron, magnesium, and calcium.

from the GNU version of the Collaborative International Dictionary of English.

  • noun (Min.) A hydrous sulphate of iron of a deep red color. It often occurs in botryoidal form.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

  • noun mineralogy A hydrous magnesium sulfate mineral.

Etymologies

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Examples

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