Icyuma cyerekana ibimenyetso bishobora guhindurwa nubunini butandukanye, imiterere cyangwa icapiro ibyo ukunda kongeramo,turashobora gutanga amasahani atandukanye yo guhitamo nka zahabu, ifeza, zahabu yumurabyo, umukara nibindi E.asily ikoreshwa ryikimenyetso kandi iranyerera hagati yimpapuro. Birashimishije nkimpano idasanzwe kumugenzi cyangwa mumuryango.