Igoa Oloa |
lopa tioata mua'i fa'afefiloi |
Fa'aaliga |
e leai ni lanu, e manino, e aunoa ma ni pupuni ma ni mea leaga |
Tele tele |
20-200 mata (75-830 μm) |
Ta'amilosaga |
≥ 70% |
Mafaufauga |
≥ 1.5 |
Malosi |
2.4-2.6g/cm3 |
Mea autu |
SiO2 > 70% |