Abstract: A method for processing prickly pear cactus skeletons and the resulting article. The process produces stabilized, acid and mold-free planer or three-dimensionally formed, cactus skeletons that can be easily handled. The method of the present invention preserves and enhances the natural intricate and delicate vein-like structures of the native skeleton and effectively alters the natural pH to a highly non-acidic state. Prickly pear cactus skeletons processed by the inventive method are ideally suited to be used as, or incorporated into, museum quality frame matting.