Minerals, Iron, Copper, Zinc
The minerals consist of iron in the greatest abundance, which at present is smelted by the natives from the clay, and every town of any note or size has not only its blacksmiths' shops, but the largest all have iron smelting works. At Ijaye there is quite an extensive and interesting establishment of the kind. And, as they manufacture brass, there must be also zinc and copper found there—indications of the last-named metal being often seen by the color of certain little water surfaces. The stone formation bears the usual indications of aqueous and igneous deposits, but more of the former than the latter.