felsite

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

Origin:
1785–95; fels(par) + -ite1

felsitic [fel-sit-ik] , adjective
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
Cite This Source Link To felsite
Collins
World English Dictionary
felsite or felstone (ˈfɛlsaɪt, ˈfɛlˌstəʊn)
 
n
any fine-grained igneous rock consisting essentially of quartz and feldspar
 
[C18: fels(par) + -ite1]
 
felstone or felstone
 
n
 
[C18: fels(par) + -ite1]
 
felsitic or felstone
 
adj

Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009
Cite This Source
American Heritage
Science Dictionary
felsite   (fěl'sīt')  Pronunciation Key 
A fine-grained, light-colored igneous rock, consisting mainly of feldspar and quartz.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
Cite This Source
Example sentences
The placement of the post-felsite intrusion to the northwest is speculative.
Copyright © 2014 Dictionary.com, LLC. All rights reserved.
  • Please Login or Sign Up to use the Recent Searches feature