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Pumice
Pumice, a rhyolite, is very common in the central North Island. It may still have evidence of the bubbles of gas trapped as the rock solidified.
Rights: Hannes GrobeCreative Commons 2.5
Published:09 April 2010Size: 611.61 KBPumice, a rhyolite, is very common in the central North Island. It may still have evidence of the bubbles of gas trapped as the rock solidified.
