Incazelo: Itshe lentaba-mlilo elaziwa kakhulu ngokuthi i-pumice noma i-basalt enezimbobo, liwuhlobo lwezinto ezisebenzayo nezingokwemvelo. Liqukethe amaminerali amaningi kanye nezinto ezincane, njenge-sodium, i-magnesium, i-aluminium, i-silicon, i-calcium, i-titanium, i-manganese, insimbi, i-nickel, i-cobalt kanye ne-molybdenum nokunye.

Ukusetshenziswa: ukwakhiwa, ukugcinwa kwamanzi, ukugaya, izinto zokuhlunga, i-barbecue carbon, ukwakheka kwendawo, ukutshalwa okungenanhlabathi, imikhiqizo yokuhlobisa kanye neminye imikhakha.

Umbala: obomvu, omnyama.omhlophe
usayizi: 3-6mm, 6-8mm, 8-10mm, 1-3cm, 3-6cm, 6-8cm, 8-10cm, 10-50cm kungenziwa ngezifiso. isitayela: itshe, izinhlayiya, impuphu.