Minerals and Metals in Ancient India v1.c18.s5.11

v1.c18.s5.11

It is significant that pure unalloyed copper was used to make the statues instead of alloyed copper such as bronze or brass; this might have some religious significance. Loṭās used for religious ceremonies were also made of unalloyed copper. The famous iron pillar at Delhi, also made in this Gupta era, constitutes of unalloyed wrought iron.