Petrified wood stimulates the metabolism and is therefore often used as a valuable companion in a diet. The special healing stone also has a positive effect on joints and bones. Are you one of those people who just like to get bogged down and wander off again and again? Petrified wood helps you not to lose your thread and to concentrate on the really important things. The gemstone gives the necessary down-to-earthness and calms your mind. Extraordinary Quartz Hand Polished Disc of Petrified Wood Weight: 13128,52 g Size: 410x405x80mm Treatment: None Origin: Madagascar It is a fossil wood dating back 200 million years, all parts from a log or branches have been silicified, meaning that organic components were little by little replaced by silicon in the form of jasper, chalcedony and more rarely opal. Without the organic parts, all the living matter was replaced by stone : there are growth rings, cell separations, almost like worm cracks. Its features are those of the mineral that would have pseudo-transformed the wood : the silicon. And that’s what we call a "petrified wood" in the common language. The disclaimer about the healing properties as previously given : It is believed that certain gemstones and minerals have beneficial health and spiritual properties. We und Catawiki cannot guarantee or be held liable for these suggested attributes which have no scientific evidence and cannot be considered a substitute for traditional medical treatment.