{"product_id":"montana-agate-rock-slab-160","title":"Montana Agate Rock Slab 160","description":"\u003cp\u003eMontana agate has been a long time favorite of the lapidary enthusiast. Found in the alluvial gravels of the Yellowstone River in eastern Montana it has been collected and worked as a semiprecious stone for nearly a century. Noted for its clarity as well as its characteristic isolated black, and occasionally bright red dendrites, it makes excellent cabbing material. The majority of Montana agate pieces show a well-defined fortification pattern of black and brown as well as bright red\/orange. There are also variations of filament and tube patterns and a small percentage display an “iris” band in which minute, regularly spaced layers act as a diffusion grating and, like a prism, break light into a rainbow of color. It is a relatively easy material to work with, being quite hard, and takes a brilliant polish.\u003c\/p\u003e\n\u003cp\u003eOrigin:  Montana\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eDimensions: 4.5\" x 1.75\" and is  approximately 6.8 mm thick.  Weight = 89 g. \u003c\/p\u003e\n\u003cp\u003eShown wet. N\u003cspan style=\"font-size: 0.875rem;\"\u003eot polished. Known flaws are shown as white lines in the final picture frame.\u003c\/span\u003e\u003c\/p\u003e","brand":"DD Rocks","offers":[{"title":"Default Title","offer_id":43290846363761,"sku":"7067082","price":19.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1026\/2271\/files\/P7067082a.jpg?v=1780248664","url":"https:\/\/ddrockshop.com\/products\/montana-agate-rock-slab-160","provider":"DD Rocks","version":"1.0","type":"link"}