Silicified wood, also known as "stone tree" and ancient tree fossils, can be traced back to the Mesozoic Jurassic10.50 billion years ago. At that time, the climate was generally hot and humid, and there were tall and dense virgin forests around the lake, gymnosperms and a large number of ferns, such as conifers, cycads, ginkgo and other ancient trees. During the long crustal movement, patches of trees were buried by mud, sand and volcanic ash. After several geological changes, the buried ancient trees resurfaced, and their wooden cells were replaced by silica, and the iron and manganese oxides dissolved in water were dyed yellow, red, purple, black and light gray, becoming today's colorful and gorgeous silicon flowers and trees.

Second, the value of silicified wood First of all, it is its non-renewable natural inheritance. Especially the silicified wood of plants, invertebrates, vertebrates and other fossils is very precious. Secondly, it's scientific research value, historical verification and scientific basis for studying paleogeology and paleoclimate. We can learn first-hand information such as the length of light, rainfall, latitude and longitude changes, geographical changes, plant community combination and so on. Third, it is its ornamental value and collection value. Among the many strange stones of wood fossils, silicified wood has the best quality, shape, color and texture, and the best smoothness, transparency, leakage and wrinkle. It is the top grade collected by stone appreciators.

The price depends on the grade and size of silicified wood: it is generally not worth much; If there are annual rings, it is worth some money; Emerald petrochemical is more valuable. Of course, the higher the price, the more valuable it is.