Petrified-Wood was produced in the Mesozoic, with the largest Jurassic. More than 100 million years, it is petrified by rich silica. According to geological theory, the Eurasian plate collides with the Indian plate to form a metamorphic belt, which produces high-temperature and high-pressure processes for hundreds of millions of years. Due to the movement of the earth's crust, the organic matter of the trees buried in the ground is gradually replaced by silica. Although the trees have been jade, the original cell morphology of the trees is still clearly visible, which is an important feature that distinguishes the jade from other jade. Generally, the higher the degree of silicidation and the longer the age, especially the characteristics of bark, annual rings and wormholes. If agate is formed, it will form a rare jade of the world. The hardness of the tree jade is as high as 7.4 degrees Mohs. Its main mineral components are opal (opa2, SiO2.nH2O) and chalcedony (SiO2). The density is 2.20 g/cm3 to 2.80 g/cm3. The special value of Shuhua jade not only shows the richness of jade, but also the vicissitudes of beautiful annual rings and bark records and provides some information about the era away. There is a forest and the beauty of the bicolor is "Lin", Lin Shi, folk is commonly known as "tree jade." "Tree Jade" is the best in geological science called silicified wood. It is an ancient treasure that nature has dedicated to human beings. She is dazzling, mysterious and valuable. "Tree Jade" was born in the Mesozoic period 250 million years ago. At that time, the forests of the Hengduan Mountains were flourishing, and the repeated mountain-building movements buried the forest deep underground, in geological conditions such as geotechnical, pressure, temperature and humidity. Under the change, the groundwater in the high concentration silica (siO2) solution is soaked for a long time, and the organic matter in the trees is gradually replaced by silicon, calcium, iron and other elements. After a long period of time, silicidation is colorful and colorful. "Tree jade" strange stone. Due to its special cause, "Tree Jade" has a hardness of more than 7 and can be passed down for a long time. Its original stone retains most of the biological characteristics of the tree, such as shape, skin marks, tree knots, annual rings and wormholes. After the initial washing, it presents a strange jade color texture, which has a glaze luster, and it is gentle and greasy, which creates a sense of heaven and earth. “Tree Jade†has a very high aesthetic value. The beauty of "tree jade" lies in its resemblance to wood and wood, like jade and non-jad; its color is colorful and colorful, its weather is tens of thousands; its quality is glazed, warm and greasy; its nature is thick and tough, simple and bleak. “Tree Jade†is monochromatic, complex and colorful due to the different trace elements and silicified forms contained in the rock environment. The pure color in the monochromatic color is slightly clear, and the color in the complex color is dazzling. Give people a visual enjoyment. "Tree Jade" has the spirituality of "the object of heaven and earth." "Book of Rites" cloud: "The soul is in the sky, the shape is in the ground", "Tree jade" is not only "the aura of the heavens and the earth, the glory of the sun and the moon", has been favored by the dynasties and literati. Explicitly respecting it as the "Xiangbao" with its different spirituality, it believes that Linshi is the conforming object of heaven and earth, and has the effect of driving evil and town monsters, and has always been regarded as a town official by the dignitaries of the past. The treasure of the town shop, there is the so-called "official no tree jade is not prosperous, the store has a stone is prosperous". The formation of tree fossils requires extremely harsh geological conditions. The fossils of paleontology are only one in ten thousand, and the probability of forming "tree jade" is even smaller. At the same time, because of its special causes and thousands of changes, it is a non-renewable resource, and it has a very high historical value, scientific research value and ornamental value, making this prehistoric treasure more rare. "Jewelry and jade" believes that those naturally formed, rare and hardened and decorative substances are jewels and jade. “Tree Jade†has already possessed the four elements of “naturalâ€, “rareâ€, “hard†and “beautifulâ€. "Tree Jade" is transformed into a strange form due to its special complexity, or it can be seen that the piano is leisurely, the mountains are standing, or the waterfalls can flow, the tigers and dragons are smashing, the image is fascinating, the shapes are strange, the heavens are human, the characters The shape of animals, fish, flowers and birds is all in the "tree jade", and some of the fine works can be shaped like, and can even achieve the degree of realism. Degradable fabric is a new type of environmental protection recycled fabric, its yarn is extracted from waste mineral water bottles and cola bottles.It is also known as cola bottles environmental protection cloth. 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