Blocks (iron oxide)

Blocks (iron oxide) are used in A Void Dance quest to analyse the sample found on the Wood shards.
 * When used with Powder (copper sulfate), Liquid (uric acid) is created.
 * When used with Liquid (uric acid), Gas vial (chlorine) is created.
 * When used with Gas vial (chlorine), Powder (copper sulfate) is created.

Trivia

 * Iron oxide is commonly known as rust. It has several chemical formulae, such as FeO, Fe2O3, and Fe3O4.