Gravité sorting equipment bɛ kɛ ka caya ka sɔrɔ ka kuran, warijɛ, tin, tungsten, tantalum, niobium, titanium, zirconium, primaire ore ani chromium placers suguya.
Medium min bɛ baara kɛ ni . Jig machine bɛ se ka kɛ ji ye, wa ni ji kɛra fɛn ye min bɛ kɛ ka fɛnw sɛgɛsɛgɛ, a bɛ fɔ o ma ko hydraulique jigging.An ka jig concentrators bɛ ni ji bolicogo wulibali ye, o bɛ danfara tiɲɛni ɲɛ baara suguya caman na.