One of a Kind - Mexican Casilica Earrings

Mexican casilica? What's that? This is what one of my trusted stone suppliers told me - apparently 100 or so years ago, in Chihuahua, Mexico, there was a company that manufactured tiles. At the end of the day, they would take their leftover glazes, and pour them in the river. Not so environmentally friendly, I know. However, the glazes settled to the bottom, hardened, and formed this manmade stone. You can see the various colors they used in making the tiles. Which, in the end, is kind of cool.