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sericite

[ser-uh-sahyt]
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noun Mineralogy.
  1. a fine-grained variety of muscovite produced by the alteration of feldspar.
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Origin of sericite

From the German word Sericit, dating back to 1850–55. See seric-, -ite1
Related formsser·i·cit·ic [ser-i-sit-ik] /ˌsɛr ɪˈsɪt ɪk/, adjective
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Examples from the Web for sericite

Historical Examples

  • There is some sericite present, also magnetite, resulting from the decomposition of the biotite.

    The Long Labrador Trail

    Dillon Wallace

  • There is also a small amount of hematite, pyroxene and sericite.

  • A dark compact rock, in which calcite and sericite predominate.

  • In igneous rock the ore-bearing solutions may have altered the wall rock to a dense mixture of quartz, sericite, and chlorite.

  • Alunite is a potassium-aluminum sulphate, which differs from sericite in that sulphur takes the place of silicon.