Definitions

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. A basic ferric sulfate mineral found in oxidized iron sulfide deposits, with the chemical formula Fe2+Fe3+4(SO4)6(OH)2·20H2O.

from The Century Dictionary and Cyclopedia

  • n. A hydrous iron sulphate, occurring in crystalline scales of a sulphur-yellow color. Also called yellow copperas and misy.

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Examples

  • •Lonia Friedlander, Washington University, St. Louis; home: Akron, Ohio; majors, chemistry and earth and planetary science; research on the stability of copiapite-group minerals.

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