KINGMAN SPIDERWEB Turquoise Cabochon Cab NATURAL 28.65mm Black Web Bracelet Oval. This is 100% Natural material. AA Natural Gem Grade KINGMAN SPIDERWEB Turquoise, a. We have to cut a LOT of this material to get a cabochon that looks like this!! This small collection is from our “MINERS CUT” KINGMAN BLACK WEB Material. The material can go from a “Robin’s Egg” blue all the way to a deep dark “Lander” blue. This Collection includes gems with a high percentage of silvery iron pyrite matrix, and deep dense black spiderweb. This material was Mined in the 1950’s, and is no longer available. (This stone is the perfect size for a pendant, or bracelet)!! These are the EXACT Stones we give our Artists to make jewelry with, there is not difference in quality or value. Mine- Mojave County, Kingman Mine, ARIZONA Origin- Arizona, USA Treatment- 100% Natural. Size/Carats- (25.50 Carats) 28.65mm x 17.13mm. Each Gem comes with its own GEM JAR! Auctiva offers Free Image Hosting and Editing. Auctiva gets you noticed! Track Page Views With.