Delightful 1950s rectangular Navajo ring in royston turquoise and sterling silver. The royston turquoise is set in a smooth and simple setting that highlights the stone. This ring is made in Applique, an emblematic process of Navajo jewelry. This technique is recognizable by the silver drop shapes on each side of the turquoise that are chiseled into thin silver plates and then soldered to the ring. Face of the ring mesures 14mmx10mm 5mmband ring total weight 5.7grams Royston Turquoise. Royston Turquoise originates from the Royston mining district near Tonopah, Nevada, and has been mined since the early 1900s. This turquoise originally comprised four old claims located within the Royston range: Bunker Hill, Easter Blue, Oscar Wehrend, and Royal Blue. The Royal Blue mine, in particular, was responsible for the majority of turquoise extracted from the area, often referred to as Royston Royal Blue. The Royston area is known for producing stunning turquoise in a range of colors, from deep sky blue to dark greens. Often, these colors blend together within the same stone, accompanied by golden brown mottled or webbed matrix patterns. While the mines currently yield high-grade material, it is produced in limited quantities. Visitors to the Royal Blue mine can pay to dig through the large tailing piles, providing a unique opportunity to find turquoise themselves. Currently, the most active Royston mines include the Royal Blue, Montezuma, Aztec, and High Grade Ridge mines. Due to the long history of mining and intermixing of rough materials, most turquoise from this area is simply identified as Royston turquoise.