Phonolite

Pho'no·lite noun [ Phono- + -lite : confer French phonolithe .] (Min.) A compact, feldspathic, igneous rock containing nephelite, haüynite, etc. Thin slabs give a ringing sound when struck; -- called also clinkstone .
Found on http://www.encyclo.co.uk/webster/P/74

Phonolite

• (n.) A compact, feldspathic, igneous rock containing nephelite, hauynite, etc. Thin slabs give a ringing sound when struck; -- called also clinkstone.
Found on http://thinkexist.com/dictionary/meaning/phonolite/

phonolite

any member of a group of extrusive igneous rocks (lavas) that are rich in nepheline and potash feldspar. The typical phonolite is a fine-grained, ...
Found on http://www.britannica.com/eb/a-z/p/59

phonolite

phonolite, phonolitic Name for various volcanic rocks which ring when struck; 'clinkstone'.
Found on http://www.wordinfo.info/words/index/info/view_unit/2737/13

Phonolite

Phonolite or clinkstone is a volcanic rock, consisting essentially of nepheline and sanidine feldspar. It usually also contains some form of augite, hornblende or biotite.
Found on http://www.probertencyclopaedia.com/browse/HP.HTM

Phonolite

Phonolite is a rare extrusive volcanic rock of intermediate chemical composition between felsic and mafic, with texture ranging from aphanitic (fine-grain) to porphyritic (mixed fine- and coarse-grain). The name phonolite comes from the Greek meaning (more or less) `sounding stone` because of the metallic sound it produces if an unfractured plat.....
Found on http://en.wikipedia.org/wiki/Phonolite
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