Natural Kingman Spider Web Turquoise is Kingman’s top grade turquoise and one of the best Spider Web’s in the world. The Kingman turquoise mine, operated by the Colbaugh family in Arizona. Kingman Mine is the last remaining commercially producing mine in the United States. Evidence suggests turquoise was mined in the surrounding areas dating as far back as 600 AD.. 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. We use no fillers, dyes, or color additives so this natural turquoise gemstone can be re-shaped if needed. (Note: if this stone is altered, the refund policy will be voided.) 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.