Ibuye ry'ibirunga (bakunze kwita pumice cyangwa basalt basalt) ni ibikoresho bikora kandi bitangiza ibidukikije, ni ibuye ryiza cyane ryakozwe n'ikirahure cy'ibirunga, imyunyu ngugu, n'ibibyimba nyuma yo guturika kwikirunga.Ibuye ry'ibirunga ririmo imyunyu ngugu myinshi hamwe na sisitemu ya sodium, magnesium, aluminium, silikoni, calcium, titanium, manganese, fer, nikel, cobalt, na molybdenum.Ntabwo ari imirasire kandi ifite imiyoboro ya magnetiki ya kure.Nyuma y’ibirunga bitagira imbabazi, nyuma yimyaka ibihumbi icumi, Abantu bagenda bamenya agaciro kayo.Ubu yaguye imirima ikoreshwa mu mirima nk'ubwubatsi, kubungabunga amazi, gusya, ibikoresho byo kuyungurura, amakara ya barbecue, gutunganya ubusitani, guhinga ubutaka, n'ibicuruzwa by'imitako, bigira uruhare rudasubirwaho mu nganda zitandukanye.

Basalt ni ubwoko bwibanze bwikirunga, nubwoko bwurutare rwimiterere cyangwa ifuro rwakozwe na magma kuva mubirunga nyuma yo gukonja hejuru.Ni urutare rwa magatiki.Imiterere yurutare ikunze kwerekana stomatal, almond nka, hamwe na porphyritike yubatswe, rimwe na rimwe hamwe na kirisiti nini nini.Basalt idahiye cyane ni umukara nicyatsi, kandi hariho umukara wijimye, umukara wijimye, nicyatsi kibisi.

Basalt nini (pumice), kubera ubukana bwinshi nubukomere butari buke, irashobora kuvangwa na beto kugirango igabanye uburemere bwayo, ariko iracyakomeye kandi ifite ibiranga nko kubika amajwi no kubika ubushyuhe.Nigiteranyo cyiza kuri beto yoroheje mumazu maremare.Pumice iracyari ibikoresho byiza byo gusya, bishobora gukoreshwa mu gusya ibyuma n'amabuye;Mu nganda, irashobora kandi gukoreshwa nkayunguruzo, akuma, catalizator, nibindi .Ibikorwa byumwimerere byibirunga byamabuye tile lava namabuye ya basalt yo kugurisha.