ʻO ka pōhaku pele ʻo Pumice (i ʻike nui ʻia ʻo pumice a i ʻole basalt porous) he ʻano mea palekana kaiapuni hana. He pōhaku porous makamae loa ia i hana ʻia e ke aniani pele, nā minelala a me nā pehu ma hope o ka pele ʻana o ka pele. Aia i loko o ka pōhaku pele he mau minelala he nui a me nā mea trace, e like me ka sodium, magnesium, alumini, silicon, calcium, titanium, manganese, hao, nickel, cobalt a me ka molybdenum. Loaʻa iā ia ka nalu magnetic infrared mamao me ka ʻole o ka radiation, Ma hope o nā tausani makahiki, ua ʻike nui nā kānaka i kona waiwai. I kēia manawa ua hoʻonui ʻia i nā kahua o ke kūkulu ʻana, ka mālama wai, ka wili ʻana, nā mea kānana, ka lanahu barbecue, ka hoʻolālā māla, ka mahi ʻana me ka ʻole o ka lepo, nā huahana hoʻonaninani a pēlā aku. He kuleana koʻikoʻi kona i nā ʻano āpau o ke ola! ʻO ka hoʻomoʻa ʻana i ka pōhaku wela he ʻano lāʻau lapaʻau pōhaku, kahi e hoʻohana ai i nā pōhaku pele wela e omo i ka ikehu maikaʻi ʻole o ke kino kanaka, kōkua i ke kino kanaka e hoʻopau i nā mea ʻawahia a hoʻolaha i ka metabolism kanaka.