phonolite
noun
a fine-grained volcanic rock composed chiefly of alkali feldspar and nepheline, some varieties of which split into pieces that ring on being struck.
phonolitic
-
a word derived from
phonolite.
Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
These lavas, setting aside the leucite, very nearly resemble the phonolitic ejections of the Peak of Teneriffe.
From Personal Narrative of Travels to the Equinoctial Regions of America, During the Year 1799-1804 — Volume 1 by Thomasina Ross
