Fa'amatalaga: O le ma'a mauga mu e masani ona ta'ua o le ma'a pumice, ma'a basalt, po'o le ma'a lava, o se ituaiga mea e aoga ma e aoga mo le siosiomaga. E aofia ai le tele o minerale ma elemene laiti, e pei o le sodium, magnesium, alumini, silicon, calcium, titanium, manganese, iron, nickel, cobalt ma le molybdenum ma isi mea fa'apena. E masani ona fa'aaogaina i togālaau, fola, puipui, la'au, ma le alamanuia o le acqurium.

Tele o ma'a mauga mu: 3-6mm,6-8mm,8-10mm,1-3cm,3-6cm,6-8cm,8-10cm,10-50cm e mafai ona fa'apitoa.
Mauga Muma'alanu: mumu, uliuli.
Mauga Muma'aFaiga: pu, fasi, pauta, laupepa