Rare and Precious Metals SET

Gold and silver are familiar to all, but many do not know why these metals are so valuable. Some people are surprised to learn about the various uses of these elements throughout history. Gold has even been used in food! This series introduces several rare and precious metals, some well known such as platinum and some not as recognizable such as chromium. Readers will learn where these treasures are mined, how they're refined, and their different applications around the world. • Fun fact bo...