sericite

noun

ser·​i·​cite

ˈserəˌsīt

plural -s

: a scaly variety of muscovite having a silky luster and occurring in various metamorphic rocks

sericitic

¦⸗⸗¦sitik

adjective

Word History

Etymology

German sericit, from Latin sericus silken + German -it -ite

First Known Use

1853, in the meaning defined above

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