ʻO ka pōhaku pele (i ʻike nui ʻia ʻo pumice a i ʻole basalt porous) he mea hana a pili i ke kaiapuni, 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 lua pele. Loaʻa i ka pōhaku pele nā ​​ʻumi o nā minelala a me nā mea trace e like me ka sodium, magnesium, alumini, silicon, calcium, titanium, manganese, hao, nickel, cobalt, a me ka molybdenum. ʻAʻole ia he radiation a he mau nalu magnetic infrared mamao. Ma hope o ka pele ʻana o ka lua pele me ke aloha ʻole, ma hope o nā ʻumi tausani makahiki, ke ʻike nui nei ke kanaka i kona waiwai. I kēia manawa ua hoʻonui ʻia kāna mau kahua noi i nā kahua e like me ke kuhikuhipuʻuone, ka mālama wai, ka wili ʻana, nā mea kānana, ka lanahu barbecue, ka hoʻolālā ʻāina, ka mahi ʻana me ka ʻole o ka lepo, a me nā huahana hoʻonaninani, e pāʻani ana i kahi hana nui i nā ʻoihana like ʻole.

He ʻano pōhaku pele kumu ka basalt, ʻo ia hoʻi ke ʻano pōhaku paʻa a huʻa paha i hana ʻia e ka magma mai ka lua pele ma hope o ka hoʻomaʻalili ʻana ma luna o ka ʻili. No ka pōhaku magmatic ia. Hōʻike pinepine kona ʻano pōhaku i nā ʻano stomatal, ʻano almond, a me nā ʻano porphyritic, i kekahi manawa me nā kristal mineral nui. ʻO ka basalt unweathered he ʻeleʻele a hina hina, a aia pū kekahi ʻeleʻele brown, poni ʻeleʻele, a me ka ʻōmaʻomaʻo hina hina.

ʻO ka basalt porous (pumice), ma muli o kona porosity kiʻekiʻe a me ka paʻakikī nui, hiki ke hoʻohui ʻia me ka sima e hōʻemi i kona kaumaha, akā ikaika nō ia a he mau ʻano e like me ka insulation leo a me ka insulation wela. He aggregate maikaʻi ia no ka sima māmā i nā hale kiʻekiʻe. He mea wili maikaʻi nō ka Pumice, hiki ke hoʻohana ʻia e wili i nā mea metala a me nā pōhaku; I ka ʻoihana, hiki ke hoʻohana ʻia ma ke ʻano he kānana, nā mea hoʻomaloʻo, nā mea hoʻoulu, a me nā mea ʻē aʻe. Nā tile pōhaku pele kūlohelohe ʻoihana pele a me ka pōhaku basalt no ke kūʻai aku.