Copper is a mineral that is utilised in electrical devices because it is an excellent electrical conductor. Clay is used to manufacture cement and other materials that aid in the construction of roadways. Borax is used to make fibreglass and cleaning agents.
Some minerals, which are generally hard, are utilised to make jewellery as jewels. From coins to pipes, copper is utilised in practically everything. From coins to pipes, silicon is utilised in practically everything. Quartz is used to make silicon, which is utilised in the computer industry.