First, foreign rocks pretend to be Lingbi stones.
Because there are many kinds of Lingbi stones, almost all the modeling stones in China can be found in Lingbi stones. Lingbi county has a huge team engaged in the management of strange stones, which has traveled all over the country and has the opportunity to find stones similar to Lingbi stone in other places. Therefore, some stones with acceptable shapes but poor quality are bought by stone merchants as lingbi stones to obtain high profits.
Judging this kind of stone:
One is to see if there is red mortar on the back. If so, it means it is produced in the soil. If not, it is probably produced in the mountains. The second is to look at the stone skin. Stone skin texture is natural and clear, and the finish is good.
The third is to see if the stone body is complete. Lingbi stone has a compact structure. Generally, regardless of size, it is a whole. Although different stones are combined together, the combination is complete and will not be loosely connected.
The fourth is to see if the stone is delicate and rough, and it is probably not an authentic Lingbi stone.
5. A stone with a good sound, regardless of its thickness, will make a crisp and pleasant sound when struck. Of course, colored stones, white wine and fossil stones are silent, but these stones are rarely fake.
Second, paste fraud
Identification method
First, it depends on whether the stone material strengthens the texture of the stone surface or the cracks before and after.
The second is to tap different parts and listen to whether the sound is consistent.
The third is to see whether the stone color, grain and luster of each part of the stone body are consistent.
Third, lose weight.
This kind of fake technique is varied, some cut the whole stone, then soak it in hydrochloric acid and wax it with oil. It looks similar to nature, but as long as the oil and wax are washed away, there will be traces of acid corrosion; There are also some treatments, either drilling holes or repairing a head, tail and shape. Especially hard stones, defects in hands and feet are not difficult to find. The identification of colored jade, colored stone and Bai Lingbi is more difficult. It depends on experience to see whether the texture and skin of the stone still retain the natural touch-up of the original stone. If it is a good pictographic stone, it is necessary to consider whether it is a fake stone.
Fourth, hand-made patterns.
There are two techniques for making false wires.
One is to carve deeper on the original grain, and the knife method is good, and the carved grain is almost the same as the natural one. In most cases, this is impossible, and the traces can be seen clearly;
There is also a kind of imitation of various natural patterns, fake patterns, which generally depends on whether the patterns themselves are naturally connected with the patterns on the front and back, and then the patterns have to be treated with acid before the patterns that can be brushed off can be made. The safest way to buy this kind of stone is to buy a visible stone that is not covered with lime soil and shoe polish wax.
Verb (abbreviation for verb) sticks after breaking.
Due to the unstable connection between natural stone and surface, the thinner part is easy to break. When buying stone, we should pay special attention to whether there are traces of adhesion in the thinner parts that may contact the ground.
According to records, the imitation of strange stones appeared as early as ancient times, but due to the limitation of tools, the technical level is still not up to the point of arbitrary, that is, Taihu stone, quartz stone or other stone species are used as lingbi stones, or stones are washed in the river for one or two years and then fished out and sold as water stones. The most brilliant thing is to use soft stones or bricks to make rockeries. So it is not surprising that there are some fake stones in the strange stone market. As long as it is made of soft stones or bricks. Be alert, be careful and don't let go of every detail on the stone, so that the fake stone can't escape our eyes.