rhyolite

Etymology
Coined by as, from  +  (modified to ).

Noun

 * 1)  An igneous, volcanic (extrusive) rock, of felsic composition, with aphanitic to porphyritic texture.

Translations

 * Czech: ryolit
 * Finnish: ryoliitti
 * Icelandic: líparít, ríólít, ljósgrýti, baulusteinn
 * Spanish:
 * Turkish: