In Babatana there is no generic equivalent for “metal,” so silver and gold, the only metals known, were made explicit.
metal
Language: Babatana
Verse: 1Kings 14:9 · 2Chr 28:2 · 2Kings 17:16 · Deut 27:15 · Deut 9:16 · Exod 34:17 · Lev 19:4 · Num 33:52
Source: David Clark (UBS)