phonolite
English
![](http://upload.wikimedia.org/wikipedia/commons/thumb/9/92/Aegirine-phonolite2-2005.jpg/220px-Aegirine-phonolite2-2005.jpg)
Etymology
phono- + -lite, from the metallic sound when it is hit.
Noun
phonolite (plural phonolites)
- (mineralogy) a light-coloured rock of volcanic origin composed mostly of alkali feldspars
Derived terms
Synonyms
Translations
light-coloured rock
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