sericite

[ ser-uh-sahyt ]

noun

, Mineralogy.

1. a fine-grained variety of muscovite produced by the alteration of feldspar.

Other Words From

• ser·i·cit·ic [ser-i-, sit, -ik], adjective

Word History and Origins

Origin of sericite¹

From the German word Sericit, dating back to 1850–55. See seric-, -ite ¹

Example Sentences

Where sericite is dominant, the alteration is called sericitic alteration.

From Project Gutenberg

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

From Project Gutenberg

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

From Project Gutenberg

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

From Project Gutenberg

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

From Project Gutenberg