Yes as Tom said Welcome Richard, glad you found us. I have seen your posts on Facebook this past week. Arizona has a lot of volcanic rock but I have yet to find pumice. I found much of it in my youth on Long Island. I don't know if they used it but on our small island there were thirteen tribes. The Canarsie, Rockaway, Matinecock, Merrick, Massapequa, Nissequoge, Secatoag, Seatauket, Patchoag, Corchaug, Shinnecock, Manhasset and Montauk.