Sterling Silver Turquoise Face and Russian Charoite Ring Adjustable from 11 to 13

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Material: Genuine Sterling Silver (925 silver, 92.5% silver content) Stone(s): Genuine turquoise, genuine Russian charoite Ring Face Dimension: 1.5 x 0.8 x 0.3 inches Weight: 16.9 grams Ring Size (US): Adjustable from 11 to 13 Stamp/Mark: 925 Serial Number: r27035 Discovered in 1978 in the Murun mountains in Yakutia, near the Charo River, bright purple Russian charoite is a silicate mineral composed of potassium, calcium and sodium. This purple, fibrous material may also contain patterns of black, white, orange and transparent crystals. Beautiful turquoise is a phosphate mineral popular all over the world. Mined since 5000 BC, it is one of the first gemstones known to be used by humans. Color variation from sky-blue to medium green is affected by differing amounts of copper and iron, more copper giving the stone a bluer color and more iron a greener one. Beautiful light blue turquoise is mined in Northern Iran and other varieties occur in Mexico, the United States and elsewhere. Show more