2) Ka taea te hainatia te whakaaetanga muna
3) E whitu nga ra whakahoki taurangi
He mea nui ake: ka taea e maatau te whakarato i nga hua anake, engari he ratonga otinga hangarau!
| tātai rāpoi ngota | Bi2Te3 |
| Pure(%,min) | 99.999 |
| Hanga | Te paura pango |
| Nga poke | (ppm, Max) |
| Ag | 0.5 |
| Al | 0.5 |
| Co | 0.4 |
| Cu | 0.5 |
| Fe | 0.5 |
| Mn | 0.5 |
| Ni | 0.5 |
| Pb | 1.0 |
| Au | 0.5 |
| Zn | 0.5 |
| Mg | 1.0 |
| Cd | 0.4 |
| Rahi matūriki (mata) | 325 |
| Waitohu | Epoch-Chem |