My family and I visited the Aeolian archipelago off the coast of Italy, specifically an island called Lipari in which most of the world's pumice is extracted. The area shows evidence of volcanic activity which is still considered active. Pumice is immediately identifiable by its very porous appearance and is a product of volcanic eruption. I explained that the pores covering the rock were formed due to bubbles of gas which were trapped in the rock. As those bubbles of gas were trapped, the rocks temperature dropped so quickly there wasn't time for the atom composition to form a crystalline structure. Consequently, pumice is described as a mineraloid due to its indeterminate shape and make-up of volcanic glass. We found the trip very exciting and my son seems more interested in geology.
Lipari island. (2013, March 31). Retrieved July 11, 2018, from http://www.infoeolie.com/aeolian-archipelago-2/lipari-island-2/lipari-island/
King, H. M., Ph.D. (n.d.). Pumice. Retrieved July 11, 2018, from https://geology.com/rocks/pumice.shtml
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