(1) should have artistic taste. Ornamental stones are natural works of art created by nature, and the process of finding ornamental stones is actually a process of discovery. To be good at discovery, you must have a certain artistic and cultural accomplishment.
Ornamental stone is a kind of natural art, which is shaped by nature in the long and complicated geological process. Some geologists are familiar with the formation process, production rules and causes of ornamental stones, but they often don't understand the artistry of ornamental stones. For ordinary Tibetan stone lovers, they often only emphasize its artistry and don't know the mystery of the formation of ornamental stones. Therefore, only by combining science with culture can we discover, collect and appreciate specimens, and generate infinite associations from their shapes, textures and patterns, and highly realize the rich connotation of ornamental stones.
The improvement of art appreciation ability is mainly to improve one's own cultural accomplishment, broaden one's knowledge and cultivate the quality of loving and participating in nature. Many valuable ornamental stones in past dynasties came from the hands of cultural celebrities; People who are engaged in arts and crafts, sculpture painting, photography creation, root art production and natural science research can also quickly turn to the field of ornamental stones. This reflects their extensive knowledge and superb taste from one side.
Love nature and dare to travel all over the country. China has a vast territory (accounting for 15.6% of the world's total land area) and complicated geological and physical geographical conditions. There are Mesozoic and Cenozoic minerals, rocks and fossils formed in Archean from more than 2 billion years ago to tens of millions and millions of years ago; In various geological ages, crustal movement, magmatic activity, metamorphism and mineralization have created rich ornamental stone resources. Plateau, mountain areas, basins, hills, plains, lakes, oceans and rivers can all be places for storing various ornamental stones. Even the desert Gobi can find unique ornamental stones. In this resource-rich land, as long as ornamental stone lovers are brave enough to wade across mountains and rivers and look for it in nature, they will certainly gain something. There are opportunities to collect ornamental stones when going out for an outing on holidays or fishing in rivers, especially in valley areas with gravel beaches in mountainous areas.
③ Grasp the internal relationship between geological conditions and ornamental stones. The variety, texture, size, color and texture of ornamental stones all depend on certain geological conditions. There is a close causal relationship between the two. For example, if you want to find a volcanic bomb, you must go to the area near the crater. The magma ejected by the volcano must have the characteristics of high iron and magnesium content and low corresponding silicon dioxide (alkaline magma) content. Another example is ornamental stones with reticulate veins on the surface, which are mostly formed by filling precipitated minerals along cracks or breccia gaps after rock is transformed by fault structures (faults or joints). Looking for such ornamental stones, we should look for them in areas with developed fault structures. Another example is the world-famous bat stone (or Shiyan stone), which was only produced in the sedimentary rocks of North China more than 500 million years ago (Cambrian) and is a trilobite tail nail fossil. The most important thing is the particularity of the formation time and geographical distribution source of ornamental stones. In other words, some ornamental stones can only be formed under certain geological conditions and certain geological historical periods. Therefore, in order to effectively find ornamental stone specimens with comprehensive types and high collection value, we should know some basic geological knowledge related to them.
For the vast number of ornamental stone lovers, it is necessary to learn some basic knowledge of geology as much as possible. With the preliminary knowledge of geology, it is not only helpful to find ornamental stones, but also to explain the reasons for the formation of stone products (geological reasons), so as to scientifically and thoroughly understand how each feature in the specimen was created by natural forces and analyze and trace its formation history. In this way, the artistic conception of stone appreciation has gone up a storey still higher. This method of using today's geological phenomenon to explain the geological action in the past geological history period is called the realistic thinking method of "pushing the present to the present".
Geological process refers to the complex process in which the earth's own gravity, rotation energy and heat, as well as the sun's gravity, heat and tidal force cause the changes and movements of crustal materials (mainly various rocks).
It has been 4.6 billion years since the earth was formed. Since ancient times, geological processes have been going on, changing the face of crustal rocks. In recent 3 billion years, geological processes have continuously produced and transformed new minerals and new rocks. The period before the emergence of real human beings (Homo sapiens) is called "geological historical period" (geo-historical period for short). Most of the fossil ornamental stones collected by people are fossils of invertebrates and lower plants hundreds of millions of years ago (Paleozoic); There are vertebrates, especially reptiles and higher plant fossils from 60 million to 200 million years ago (Mesozoic); There are also fossils of mammals and higher plants from hundreds of thousands of years ago to 50 million years ago (Cenozoic).
The composition, composition, structure and state of the earth are very complicated. The material movement inside and on the surface of the earth includes the complex physical, chemical and biological movement forms of inorganic and organic worlds, including thousands of degrees of high temperature, complex composition of molten slurry and frozen world covered with snow and ice. There are towering mountains; There are deep seabed abyss, surface conditions at normal temperature and pressure, and underground conditions at high temperature and pressure, which shows that the geological process is a complex process that is constantly changing.