Fa'amatalaga: Ma'a volcanic e masani ona ta'ua o ma'a pumice, ma'a basalt, po'o le lava papa, o se ituaiga o mea aoga ma le siosiomaga.O loʻo i ai le tele o minerale ma microelements, e pei o le sodium, magnesium, alumini, silicon, calcium, titanium, manganese, uʻamea, nickel, cobalt ma molybdenum ma isi mea.which e masani ona faʻaaogaina i togalaau, fola, puipui, laau, acqurium alamanuia .

Ma'a volcanic Size: 3-6mm,6-8mm,8-10mm,1-3cm,3-6cm,6-8cm,8-10cm,10-50cm e mafai ona faʻapipiʻiina.
mauga mumaalanu: mumu, uliuli.
mauga mumaaSitaili: lump, particle, powder, sheet