1. Look at the chassis: containers can be seen from the mouth, and statues and ornaments can be seen from the bottom. Asian rhinoceros horn is watermelon seed or turtle back; African rhinoceros horn (wide angle) is round or rectangular, which is not absolute: because it can be pulled into various shapes such as flower mouth by hand after cooking, but there are still traces.
2. Look at the texture: any rhinoceros horn has a parallel "bamboo pattern" (also called "parallel pattern") in the longitudinal section, and the "bamboo pattern" of Asian rhinoceros horn is thicker; African rhinoceros horn with bamboo silk pattern will be fine. There are "millet grains" (also called "goose skin grains", "hair follicle grains" and "roe grains") in any cross section of rhinoceros horn. There are interwoven "twisted lines" (also called "twisted lines" and "ox wool") on the longitudinal section of buffalo horn, but there are no parallel lines.
3. Look at the horny pulp: On the cross section of buffalo horn, white annular horny pulp (keratin layer) can be seen around the center, but not in Asian rhinoceros horn. African rhinoceros horn is just surrounded by a wide-edged horn pith, without layers of nesting.
4. Look at the color: Sumen rhinoceros horn and Java rhinoceros horn products are honey or chestnut, with pure color and high transparency; Indian rhinoceros horn is black in the upper part and clear in the lower part, which is called "cloud head and rain foot". The upper part of the wide angle is grayish black, and the lower part is grayish yellow. The color of rhinoceros horn is not single, and it is always black near the longitudinal center, which is an important feature that distinguishes rhinoceros horn from other horns. The color of rhinoceros horn is often dyed ancient red to achieve the antique effect. In fact, only extinct rhinoceros populations in nature have red keratin.
5. Look at the cavity: Asian rhinoceros horn is small in size and shallow in cavity, and is generally used to make handicrafts within 30 cm, such as rhinoceros horn cups and snuff bottles. In ancient times, large rhino horn carvings (more than 30 cm), such as statues of immortals, were generally made of Indian rhino horns. African rhinoceros horn is large and deep, and the larger rhinoceros horn carvings are mostly wide-angle carvings.
6. Feel the temperature: the rhinoceros horn is cool and warm; Buffalo horn is cold (cold); Resin synthetic products have no cold feeling.
7. Smell: Asian rhinoceros horn incense; Wide-angle fishy smell; The dry grinding of buffalo horn smells of sulfur.
8. Look at the carving: the rhinoceros horn carving knife is delicate and smooth, and the details are carefully handled and polished smoothly; The horn carving is rough or stiff, with rough details, common burrs, knife marks and wounds, and the ground is uneven. There is no knife work and no carving marks on the resin molded products. Generally speaking, the advantages and disadvantages of rhinoceros horn carving and rhinoceros horn carving cannot be absolute. )
9. Touch with your hands. Rhinoceros horn is bright and smooth, obviously oiled, not dry, with few cracks and good hand feeling. Buffalo horn is dry, with poor oiliness, frequent cracking and poor hand feeling. The surface of rhinoceros horn has not changed after being dipped in water, and the surface of buffalo horn becomes soft after being dipped in water, which has a feeling similar to touching meat.
10. Another notable feature of rhinoceros horn is that the longitudinal lines of rhinoceros horn (including sub-rhinoceros horn and non-rhinoceros horn) are always straight and parallel to each other. Even if it cracks due to age, it will not appear like other corners. Although there are rings in the cross section of rhinoceros horn, the longitudinal fiber lines are parallel to each other, so the phenomena reflected in the cross section are as follows: (1) is called "roe line" for sub-rhinoceros; For non-rhinoceros, it is called "sugarcane pattern", and people in the industry collectively call it "caviar pattern". Other speakers do not have this function.
The above-mentioned "wide angle" refers to the African rhinoceros horn, which is produced in Africa and is dark brown. Wide angle, also known as Tianma Jiao, can be used for carving handicrafts and medicine, but its effect is not as good as that of Asian rhinoceros horn. In the past, most of them were imported from Guangzhou and operated by Guangzhou express importers, so it was generally called wide angle. Wide-angle moire is thinner than rhinoceros horn, and it adheres to each other without honeycomb eyes, fish-seed patterns and grooves, which is one of the remarkable differences from Asian rhinoceros horn.