{"product_id":"rocks-gems-geodes-9781338575729","title":"Rocks, Gems \u0026 Geodes","description":"Kick-start your very own rock collection with the 36 stones. Then use the included crystal powder and mold to grow a geode formation. Collect rocks and conduct experiments, such as a scratch test and float test, to discover their hidden properties. You'll even learn how to make your very own rock tumbler. Use the fact-filled book to keep exploring the world around you! Comes with: 36 rocks, display tray, crystal powder, geode mold, plaster, magnifying glass\u003cbr\u003e","brand":"Klutz","offers":[{"title":"Default Title","offer_id":50598001738002,"sku":"9781338575729","price":16.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0831\/4771\/8930\/files\/img_c1464356-3c61-4a82-860a-736872434781.jpg?v=1732181497","url":"https:\/\/surprise-castle.myshopify.com\/products\/rocks-gems-geodes-9781338575729","provider":"Surprise Castle","version":"1.0","type":"link"}