Like granite, the metamorphic rock unakite is made up of a few minerals, two of which are also in granite—feldspar and quartz—and one of which isn’t, epidote. In fact, unakite used to be granite before it was metamorphosed into unakite, partially by very hot fluids that dissolved some of the feldspar, allowing it to be replaced by epidote. It’s pretty easy to identify unakite because it’s always a combination of green and orangey pink, with the green being epidote and the pink being feldspar. The quartz doesn’t add any color, it just hangs out behind the scenes. Unakite was named after the place where it was originally discovered, the Unaka Mountains in North Carolina, but you can also find it on the beaches along the Great Lakes, among other places. The Great Lakes are a fairly great place to look for rocks, since you can find unakite, “yooperlites” (fluorescent rocks containing sodalite), Lake Superior agates, Petoskey stones, and more!