The Royston mine is located near Tonopah, Nevada and produces high quality stones, ranging from a 5-6 on the natural hardness scale. Royston Turquoise is valued for its vibrant natural blue and green hues that swirl and blend together with a golden brown matrix. Often one stone or cab will have both sky blue and green fading together, a characteristic that has made the mine famous. The Royston mine has been operating for over 60 years and is made up of what used to be four smaller Turquoise claims named Bunker Hill, Easter Blue, Oscar Wehrend, and Royal Blue. Over the years the Royston mine has supplied Turquoise to some of the top jewelry manufacturers in the world. Because of its colors, Royston Turquoise is often set in Gold. It is sought after by the best artists and has a place in the Turquoise top five with Kingman, Bisbee, Boulder Mountain, and Sleeping Beauty.