Polished Natural Petrified Wood Gemstone Worry Stones Sold in 1 kilogram bags Approximately 30-35 pieces Dimensions: 50x40x10mm Origin: Madagascar Petrified Wood is a remarkable stone of transformation, created when ancient trees undergo a unique fossilization process over millions of years. This process occurs when wood is buried under sediment and protected from decay by oxygen. Over time, mineral-rich water flows through the sediment, gradually replacing the organic material of the wood with minerals like quartz, chalcedony, and jasper, while retaining the original structure of the tree. The result is a breathtaking fossil that combines the natural patterns of wood with the enduring beauty of stone.