Muntz metal (see link).
Copper or zinc
Most trumpets are made of brass. They are then dipped in lacquer to maintain the shine. However, The most common type of brass used is yellow brass, which is 70 percent copper and 30 percent zinc. Other types include gold brass (80 percent copper and 20 percent zinc), and silver brass (made from copper, zinc, and nickel).
The metal composition of penny coins made after 1982 is 97.5 percent zinc and 2.5 percent copper. The first penny coins, from 1793 to 1837, were made from pure copper.
copper and zinc
One of the many types of brass.
Brass is an alloy of copper and zinc. Therefore it is a metal. Which means that Brass is natural.
Alloys that contain only copper and zinc are usually called "brass"; there are also some alloys that contain one or more other metals in addition to copper and zinc, and these usually have another name.
Brass is a metal alloy made of copper and zinc.
Brass - Aich's brass contains 66.6% copper and 36.58% zinc, the balance tin and iron. Muntz brass contains 60% copper and 40% zinc with a trace of iron and is used as a lining on boats
97.5% zinc, 2.5% copper.
Copper Zinc and Tin The bronze medal is made up of 97 percent copper, 2.5 percent zinc and 0.5 percent tin and the gold medal is made up of 92.5 percent silver and 1.34 percent gold, with the remainder copper. The silver medal is made up of 92.5 percent silver, with the remainder copper.
Zinc is an element in the periodic table. It is made of 30 Protons and 35 Neutrons. Its most abundant isotope is Zn+2. Zinc is often used to coat metals such as steel to prevent oxidization (think of a metal watering can). Zinc is also used in Brass and Bronze.