Besides iron and aluminium, there are other metals that are used in many manufacturing processes. Gold, brass, silver, copper, and platinum are metals that are used in manufacturing, but not to the extent that iron and aluminium are. The difficulty of obtaining the ore, the size of the supply and the level of difficulty involved in processing the mineral are all factors in the price of these minerals. Though miscellaneous metal and metal products may not be as recognised as the more common metals, they still play important roles in industries of all types.

Gold is essential to many products today; tiny bits of gold are used in everything from cell phones to space exploration. Gold is the softest mineral on the planet, which makes this mineral ideal for jewellery making; the softness of the material allows it to be bent and shaped in infinite ways. The main industrial use of gold is in the manufacture of electronics; gold is an excellent electrical conductor and is a part of memory cards, cell phones, and computer motherboards.

Another less common metal is platinum, a rare, silvery-white metal with many desirable properties. One of those properties is the ability of platinum to convert harmful auto emissions into carbon dioxide and water; one of the most common uses of this metal is in the manufacturing of catalytic converters in autos.

There are many other miscellaneous metal and metal products available. As a matter of fact, if you do an online search for information on the subject, you will find more than 100,000 sites related to just that subject.