Book 2 has a title!

So what glitters? Is all that glitters gold?

     Gold is a pure element, which means all the atoms in a nugget of gold are the same. Chemists abbreviate gold with its chemical symbol Au. In it’s pure form before it’s been polished, gold doesn’t really glitter. In fact, it’s kind of dull.

     Pyrite, though, glitters a lot! Pyrite is sometimes even found in the same types of formations as gold. It’s shiny appearance has given it the nickname “fool’s gold.”

     But pyrite isn’t gold at all! It is only iron and sulfur combined together to form a compound called iron sulfide. Chemists write its name FeS_{2 .}