Islamic Interpretation of Dreams (Ibn-i Sirin):

(Money; Yellow) Brass in a dream means enmity.

If one sees himself meltingbrass in a dream, it means that he will engages in a fight about mundane things and consequently becomes himself a subject of people’s talk.

It is also said that if one sees yellow brass in his dream, it means that he will hear harsh words and false statements. Yellow brass in a dream also represents a person who is proud about his worldly possessions.

If one is beaten with a stick of brass in a dream, it means that he is seeking some worldly gains. Brass or similar yellow metals in a dream represent an imposter who swindles money from people, cheats and threatens them.

(Also see Coppersmith)