What is Yu Shuhua? What is the value?

Tree jade is jade-shaped silicified wood. It belongs to silicified wood, and its appearance is crystal clear, which is different from ordinary silicified wood. In the long geological history, large areas of virgin forests were buried underground by great natural forces. Soaking in silica under high pressure, low temperature and oxygen-free environment, the carbon elements in trees are gradually replaced by silica, and some of the original characteristics of trees are retained, and some mineral elements in surrounding rock layers are mixed to form colorful substances, which are silicified wood, also known as wood fossils. Then in the long geological period, with the constant changes of temperature and pressure, silicified wood has undergone different degrees of metamorphism and recrystallization, and its main components have been transformed into opal chalcedony, which is Shuhuayu, also known as Huamuyu.

The hardness of Huamuyu is 7.4 degrees higher than Mohs hardness. Its main mineral composition is opasio 2. NH2O and chalcedony (silica). The density is 2.20g/cm3-2.80g/cm3. Huamuyu not only shows the wealth of jade with its special value, but also records and provides some information about distant times with beautiful annual rings and bark changes. Not only has high economic value, ornamental value and scientific research value.