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• n  very acid volcanic rock

• This kind of stone (a rhyolite) is found mainly, in one place in Britain: the east end of the Prescelly Mountains in the south of Wales.

News & Articles

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• Coachella Valley History Museum exhibit details history of Cahuilla, Chemehuevi tribes
  Loading Photo Galleries ... Arrowhead points made of quartz, chert, rhyolite, jasper, glass, and chalcedony are in exhibit 'Journey of a People: A History of the Cahuilla & Chemehuevi.'
  Sept. 21, 2013 - The Desert Sun