: a dense igneous rock consisting almost entirely of feldspar and quartz
Word History
Etymology
felspar + -ite
First Known Use
1794, in the meaning defined above
Dictionary Entries Near felsite
Cite this Entry
“Felsite.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/felsite. Accessed 16 Apr. 2024.
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Britannica.com: Encyclopedia article about felsite
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