Kufotokozera: Mwala wa phiri lophulika lomwe limadziwika kuti pumice kapena basalt yokhala ndi porous, ndi mtundu wa zinthu zothandiza komanso zachilengedwe. Uli ndi mchere wambiri ndi zinthu zazing'ono, monga sodium, magnesium, aluminiyamu, silicon, calcium, titaniyamu, manganese, chitsulo, nickel, cobalt ndi molybdenum ndi zina zotero.

Kagwiritsidwe ntchito: zomangamanga, kusamalira madzi, kupukusira, zinthu zosefera, kaboni wa barbecue, kapangidwe ka malo, kulima kopanda dothi, zinthu zokongoletsera ndi minda ina.

Mtundu: wofiira, wakuda. woyera
kukula: 3-6mm, 6-8mm, 8-10mm, 1-3cm, 3-6cm, 6-8cm, 8-10cm, 10-50cm ikhoza kusinthidwa. Kalembedwe: mwala, tinthu tating'onoting'ono, ufa.