Ko te Pumice (e mōhiotia whānuitia ana ko te pumice, ko te basalt porous rānei) he momo rauemi tiaki taiao whai hua. He kohatu porous tino utu nui i hangaia e te karāhe puia, ngā kohuke me ngā mirumiru i muri i te pahūtanga o te puia. Kei roto i te kohatu puia he maha ngā kohuke me ngā huānga iti, pērā i te konutai, te konupūmā, te konumohe, te silicon, te konupūmā, te titanium, te manganese, te rino, te nickel, te cobalt me ​​te molybdenum. He ngaru aukume infrared tawhiti tōna, kāore he irahiko. I muri i ngā mano tau, kua kitea e te tangata tōna uara. Ināianei kua whakawhānuihia ki ngā mara o te hanga, te tiaki wai, te huri, ngā rauemi tātari, te waro tunutunu, te whakapaipai māra, te mahi kore oneone, ngā hua whakapaipai me ētahi atu. He mahi nui tāna i roto i ngā āhuatanga katoa o te ao! Ko te tunutunu toka wera he momo rongoā kohatu, e whakamahi ana i ngā kohatu puia wera hei mimiti i te kaha kino o te tinana tangata, hei āwhina i te tinana tangata ki te whakakore i ngā paitini me te whakatairanga i te pākia o te tinana.