Morenci Turquoise was mined in Greenlee County in southeastern Arizona. This material due to the mine closing in 1984 is rare and near impossible to get and very expensive. Morenci is highly prized for its beautiful blue colors, The Turquoise was a byproduct of the Morenci copper mine in Arizona. From 1956 to 1984 the Turquoise rights were granted to William "Lucky" Brown who had a good mining reputation. The Morenci mine is now closed and is not producing any more material which only adds to its value. 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.