This stunning Royston Boulder Turquoise is set in sterling silver and features hand made sterling and fine silver embellishments.  Your choice of a 16", 18" or 20" 4mm wheat chain; or a 4.6mm rolo chain adjustable up to 24".Royston is a turquoise mine located in Tonepah, Nevada and is operated by the Otteson family. The Royston mine was discovered in 1902 and is the oldest patented mine in Nevada.While Royston is considered an active mine, it is small and is a good producer of high quality stones. Royston turquoise is known for its beautiful deep green to rich light blue colors. These unique color ranges are what make this stone so special. Royston turquoise is considered very collectible and a good investment.🔹SIZE: Pendant is 1 7/16 inches in length and 2 3/4 inches at it widest point.🔹WEIGHT: 52 grams🔹LENGTH: Options listed above🔹DURABILITY: Turquoise has variable hardness depending on the mined location and can rate anywhere between a 2 and a 6 on Moh's hardness scale. In general Turquoise should be treated as a relatively soft stone and protected against strong chemicals such as hand sanitizer or cleaning supplies.🔹SHIPPING: Free shipping!🔹GIFTS: All items are shipped in a gift box, ready to give or enjoy as a gift to yourself! We can ship directly to your friend/family member. We'd be happy to include a gift note from you too. Just enter the text you'd like us to use in the 'notes to seller' field as you check out.🔹SHOP: Click here to see all our styles https://www.etsy.com/shop/ThreeHorseDesign🔹QUESTIONS? Just click on the 'Message Denise' button below I will answer as soon as possibleThis is a one of a kind necklace, the one pictured is the one you will receive.Our photos of the stones are all natural, no Photoshop or tricky lighting here!My jewelry is a perfect gift for mother's day, Christmas, an anniversary or just to celebrate that special person in your life.