Igikoresho cy'ibuye rya agate ryahanaguwe rikoreshwa mu guhanagura amababi ya zahabu, ubuso bwasizwe zahabu n'ibisiga byoroshye. Ubuso bwa agate, bworoshye kandi bukomeye cyane, bukanda kandi bugatanga umucyo ku zahabu cyangwa ku irangi butarandura cyangwa ngo bukomeretse — ni igikoresho gakondo cyo kurangiza gusiga zahabu n'amazi kuva mu bihe by'Ubwami bwo hagati.