felsite

[ fel-sahyt ]

/ ˈfɛl saɪt /

noun

a dense, fine-grained, igneous rock consisting typically of feldspar and quartz, both of which may appear as phenocrysts.

Nearby words

felonious, felonry, felony, felony murder, felsic, felsite, felspar, felspathic, felt, felt marker, felt side

Origin of felsite

First recorded in 1785–95; fels(par) + -ite¹

Related forms

fel·sit·ic

[fel-sit-ik] /fɛlˈsɪt ɪk/, adjective

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for felsite

The stones themselves were felsite, which abounds in the locality.
Unknown Mexico, Volume 1 (of 2)|Carl Lumholtz
We found, besides, a few cores of felsite and some shapeless flakes and several fragments of large metates.
Unknown Mexico, Volume 1 (of 2)|Carl Lumholtz

British Dictionary definitions for felsite

felsite

felstone (ˈfɛlˌstəʊn)

/ (ˈfɛlsaɪt) /

noun

any fine-grained igneous rock consisting essentially of quartz and feldspar

Derived Forms

felsitic (fɛlˈsɪtɪk), adjective

Word Origin for felsite

C18: fels(par) + -ite 1

Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Science definitions for felsite

felsite

[ fĕl′sīt′ ]

A fine-grained, light-colored igneous rock, consisting mainly of feldspar and quartz.