There are many interior decor guidelines to follow that are practiced and avoided for various reasons, but a rule against mixing metals is not one of them. Mixing a variety of metal finishes creates a polished environment with the sense of an interior space being collected over time. Combining silver, gold, brass, or iron (just to name a few) is a great way to add visual interest and depth. To try the trend out for yourself, check out Minerva's Designer Series line which offers a variety of styling stations, mirrors, and more in customizable finishes and accent colors.