One of the mysteries of the English language finally explained.
A fine-grained fibrous variety of muscovite, found chiefly in schist.
- ‘The nearby K - 2 deposit is very similar to the Kettle and contains, besides quartz, veins with calcite, ferroan dolomite, and minor chlorite, potassium feldspar, adularia, sericite, pyrite, and barite.’
- ‘The matrix is dominated by sericite, chlorite and quartz.’
- ‘At some locations sericite completely pseudomorphs topaz and the feldspars.’
- ‘The samples from the andesitic units, occurring as tectonic lenses in the greywacke sequence, exhibit plagioclase phenocrysts altered to sericite, calcite and epidote, set in a matrix of chloritized pyroxene and amphibole.’
- ‘Many of the grains are partially to entirely replaced by fine-grained sericite and quartz.’
Mid 19th century: from Latin sericum ‘silk’ + -ite.
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