Magnetite/Jarosite
Magnetite/Jarosite (Cilacap southern Java),
welding test A, 2000-2001
Magnetite/Jarosite (Cilacap southern Java),
welding test B, 2000-2001
Magnetite/Jarosite (Cilacap southern Java),
welding test C, 2000-2001
Magnetite/Jarosite (Cilacap southern Java),
iron sponge A, 2000-2001
Magnetite/Jarosite (Cilacap southern Java),
iron sponge B, 2000-2001
Magnetite/Jarosite (Cilacap southern Java),
iron sponge C, 2000-2001
Magnetite/Jarosite (Cilacap southern Java),
sand, 2000-2001
Magnetite/Jarosite (Cilacap southern Java),
iron ball (bulat), 2000-2001