I. Advantages and disadvantages of stone products
The quality of stone offerings can be measured according to certain evaluation criteria. There are not only unified and generalized general standards, but also classification standards for similar comparison according to different categories and different stone species. Both general standards and classification standards should include science and art, and both are indispensable. At the same time, due to the different physical and chemical properties and styles of decorative elements such as shapes, colors, textures and lines of various stones, their appreciation emphases and aesthetic standards are also different, so special attention should be paid when evaluating a single stone.
Also remember that strange stones are natural products after all, and they can't stick to the rules and remain unchanged, that is, the so-called "master can teach people rules, but he can't make people clever."
(1) integrity. Refers to whether the overall shape of the stone is perfect, whether the pattern is complete, whether there are redundant or missing parts, whether the color matching is reasonable, whether the stone muscle and epidermis are natural and complete, and whether there are defects.
Generally speaking, stone offerings are not allowed to be cut and processed, and their natural posture must be kept as much as possible. If someone is carving or decorating, it belongs to stone carving art. Some stone appreciators are so strict that they are not even allowed to cut the bottom. They think that the stability of the bottom can only be adjusted by the base. However, some kinds of stones, such as Shi Ying, cannot be obtained without cutting the bottom. Therefore, the behavior of edge biting cannot be generalized.
Before evaluating a stone, we should carefully study its integrity, from top to bottom, back and forth. If there are obvious defects, they should be abandoned. Pay special attention to whether there is any damage; Some donor stones are broken and bonded, leaving traces at the bonded place.
(2) Modeling. Refers to the shape of stone offerings, which is the first content to be evaluated between concrete stone offerings and abstract stone offerings.
"Wrinkle, thinness, leakage, transparency, ugliness, beauty and strangeness" are important factors to evaluate the shapes of similar stones such as Taihu Stone, Lingbi Stone, Quartz Stone and Mohu Stone. All the above seven elements are available, and its shape must be beautiful.
Wrinkles. The surface of the sarcophagus is undulating, wrinkled and curved, and it has a weathered feeling. ("Wrinkle" also refers to the texture of stone skin. )
Thin. The body should avoid bloated, the skeleton should be solid and beautiful, and the outline should be clear and definite.
Leak. In the undulating curve, the protrusions are obvious, like caves, full of meaning.
Thoroughly It is ethereal and transparent, exquisite and lovely, marked by holes of different sizes, which can show endless background and make people daydream.
Ugly. A more abstract concept lies in my understanding when choosing and appreciating stones, "turning decay into magic". During the Warring States Period, Zhuangzi put forward the "positive beauty" which integrates beauty, ugliness and strangeness, in order to "unify Taoism". Later generations Su Dongpo and Zheng Banqiao put forward the "Chou Shi view". Its significance lies in that you should never appreciate the stone with a beautiful mood, but be extraordinary.
Show. What seems to be a contradiction with ugliness is actually a unity of opposites. Emphasis is on vividness, elegance and elegance, avoiding arrogance and domineering.
Strange shapes are rare in similar stones, which make people unforgettable and unique in personality.
Lingbi stone, quartz stone, Boshan aragonite, Honghe stone and many other stones have natural landscape stones. In the section "Classification of stone products", various forms of natural landscape stones are introduced. Those who are difficult to meet the above requirements cannot be included in the top grade. Top grade natural landscape stone should also meet the following two conditions: male and stable.
Bear. Refers to the extraordinary momentum, or majestic, or powerful.
Steady. The proportion of front, back, left and right is symmetrical, which accords with the natural state of a landscape. At the same time, the base should be as stable as Mount Tai, and it should not give people the feeling of instability.
All kinds of stones have abstract stones, with a high proportion. When judging whether their shapes are beautiful or not, Taihu Stone is judged by "seven elements", while some stone species, such as Honghe Stone, Heluo Stone, Yellow River Stone, and Jianghui Stone, are judged by whether the combination of points, lines and surfaces is perfect or not. In abstract stones, there is often a focus of attention. The extension line of this point is a straight line, the direction extension line is a straight line and the direction extension line is a curve. A stone offering is a work of art with a three-dimensional image. In three-dimensional space, a straight line is the boundary line of a face. In three-dimensional space, shape is a body composed of faces, and lines change with the boundaries of the body. An abstract stone body composed of points, lines and surfaces has a sense of beauty when it is smooth, quiet or dynamic. As for its competition, we should comment on a specific stone.
There are also figurative stones in pebbles such as Yellow River Stone and Wujiang Stone. If the shapes are vivid, they are very precious. Li Weixin, a stone connoisseur, once introduced a kind of flat pebbles in the article "Ornamental Stones of Strange Stones": "Due to different weathering, the black stones in the interlayer are displayed, forming a naughty monkey head with big and round black eyes, high and wide forehead and brow bones, straight and long nose, small nostrils and slender face." The most vivid thing is the mouth, and the thin lips are staggered left and right, revealing a funny face. Pebbles like this are undoubtedly worth collecting.
(3) color. Every stone has different requirements. Kunshi and stalactite are crystal white, yellow wax stone is frozen, Taihu stone is blue and white, Laoshan green graphite green, Lingbi stone and Boshan aragonite are black and black, and Mohu stone is black and slippery. Many pebbles also belong to colored stones. Simple colors or clever collocation of multiple colors may be classified as top grade, but those with unclear colors and chaotic collocation will not flow.