Skycloud Turquoise Mine located in Nevada this mine is owned by my good friends the Otteson’s. I have known the miners for years. Shortly after hitting turquoise and selling rough as Skycloud the name was change to Sierra Nevada. I still use the original name on the material I purchased as Skycloud this let me know that this was some of the first material mined from this claim. The Son and I do all the cutting work we never farm it out. We are Native American gem cutters, we are registered members of the federally recognized Native American tribe Wichita Indians out of Oklahoma. The photos in this listing are taken in natural sunlight. To be clear if it says Natural it is natural and backed with JB Weld, if it says 100% Natural it is all turquoise no backing was used. Size is Approximate give or take .5 mm Note: In the event of any typos in this listing, the item in the photos is the one or ones you will receive if you purchase this item. PLEASE NOTE: Some countries don't allow gemstones to be shipped to their citizens. Please check with Customs before making your purchases. If you live in one of the countries that don't allow gemstones to be imported and you buy from us, we will issue a refund and not ship the item. We offer a “NO HASSLE” seven-day refund with return shipping paid by the buyer. Our return policy starts when you receive the stone or it hits your PO Box, Buyer Pays return Shipping.