O le antimony ingot o se ituaiga u'amea mamafa e le o u'amea, e ma'a'a ma susulu le siliva pa'epa'e. E lua allotropes, o le variant samasama e mautu i le -90 tikeri, ma o le variant u'amea o le ituaiga mautu o le antimony.
Tulaga e liusuavai ai 630 ℃, mafiafia 6.62g/cm3, e le lelei le tafega o le vevela.
Mamafa mama o apa ta'itasi: 22 ± 3kg, fua: 21 × 21 Pito i lalo: 17 × 17 Maualuga: 9 cm, fa'aputuina i totonu o pusa laupapa, fa'atasi ai ma le mamafa mama e 1000 ± 50 kg i le pusa;
| Vasega | Mea leaga≤ |
| As | Fe | S | Cu | Se | Pb | Bi | Cd | Aofa'i |
| Sb99.90 | 0.010 | 0.015 | 0.040 | 0.0050 | 0.0010 | 0.010 | 0.0010 | 0.0005 | 0.10 |
| Sb99.70 | 0.050 | 0.020 | 0.040 | 0.010 | 0.0030 | 0.150 | 0.0030 | 0.0010 | 0.30 |
| Sb99.65 | 0.100 | 0.030 | 0.060 | 0.050 | — | 0.300 | — | — | 0.35 |
| Sb99.50 | 0.150 | 0.050 | 0.080 | 0.080 | — | — | — | — | 0.50 |