By Thijs Hagendijk
A fresh bag of Brussels sand had just been opened while six academics stood behind a workbench, feeling and touching the sand as if it had just arrived from Mars. In fact, I was about to start my first historical reconstruction of early modern gold- and silversmithing techniques. First step in the process was to prepare the sand that is used to make molds for casting. Still a bit uncomfortable, I added a splash of water while all of a sudden we became aware of a specific odor that had been notably absent in the clean and white environment of the building. We smelled mud!