felsite
[fel-sahyt]
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noun
a dense, fine-grained, igneous rock consisting typically of feldspar and quartz, both of which may appear as phenocrysts.
Origin of felsite
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Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
Examples from the Web for felsite
Historical Examples of felsite
The stones themselves were felsite, which abounds in the locality.
Unknown Mexico, Volume 1 (of 2)Carl Lumholtz
In the south of the island there are sills and dykes of felsite, quartz-porphyry, rhyolite, trachyte and pitchstone.
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
felsite
felstone (ˈfɛlˌstəʊn)
noun
Word Origin for felsite
C18: fels(par) + -ite 1
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
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felsite
[fĕl′sīt′]
The American Heritage® Science Dictionary
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