1: 5A level, which is determined by the industry.
AA grade: the whole orange stone has no flaws, and the surface has no artificial defects visible to the naked eye, such as cracks. It is smooth and delicate as a gem, with fine perforations, and has a glass luster after polishing.
A 1 grade: there are tiny cracks or tiny natural inclusions, and the cracks are less than 3mm. Polishing has a frosty feeling.
Grade A: slightly defective, easily broken by naked eyes.
Class AB: large white, yellow and gray inclusions with obvious cracks.
Grade B: The whole area is mottled and cracked, and it feels like soil and sand after polishing. .
Grade C: the lowest grade, with obvious cracks and impurities on the surface, and rough as bricks after polishing.
2. Orange stone culture, the grading adopted in this wholesale.
Bean seeds: the surface is dull, sandy and weak.
Ink type: the surface has a coarse sand feeling and more impurities.
Ice seed: the surface is smooth as jade, without impurities,
Waxy seeds: the surface is smooth as a gem, without impurities, delicate as a gem, and the color is rich as glutinous rice juice.
Static water dragon stone species: bright as a gem, extremely rare.
3. According to translucency, the term translucency itself means not translucency but brightness. The finer the texture, the brighter it will be after polishing. This is the national gem testing standard. The bigger the number, the better the quality. Orange stone only uses gem-grade transmittance, and the lowest transmittance of gem-grade is 1 min.
Cleaning method of orange stone
Brief introduction to the history of orange stone purification: orange stone needs to be purified once a month from 1 to 3. Even the lights need to be cleaned regularly for a reason. The word purification is similar to degaussing in Latin, so it is also called degaussing. Many people often wonder why it is necessary to purify and degauss, which has scientific and theological basis. Purification was introduced into China from abroad after the reform and opening up. Because Taoism and Buddhism have a great influence on China culture, feces and blood are considered sacred. People who know the history will know that the second chapter of Zhang Jiao's Romance of the Three Kingdoms, "Liu Xuande Spilled Dog Blood in the Cold War", introduced the necessity of preparing pig blood and dog blood (menstrual blood for women). "Romance of the Three Kingdoms" also introduced that Zhang Jiao was once fascinated by feces. In Tibet, guests come to clean bowls with cow dung and pour wine to celebrate. Ganlu pills in Buddhism are made from men's semen, women's menstrual blood and feces. Therefore, with the secularization of religion, many last French people understand that the dirtier the more evil it is. This is actually a misunderstanding of the profound meaning of Buddhism and Taoism, but such mistakes have also led to the so-called long-term wearing of crystal jade. In the cultural relics industry, this long-term wearing process is also called "plate", which means that the longer the plate is, the more spiritual it is. Many people think that the color behind the plate is dark. In fact, this color is called "Bao Guang" because the dander tissue has an acidification effect on the surface of the object for a long time, and then the color becomes dark. In fact, scientifically speaking, people's dead skin tissue will breed fungi, and it is easy to get skin diseases without washing for a long time, and then it will evolve into skin cancer. There are many people suffering from scabies in society now, and it is also because of the wrong view that long-term non-washing can ward off evil spirits and increase spirituality. Citrus stones should be cleaned regularly, because the physical properties of citrus stones determine that acidic or alkaline cleaning agents cannot be used casually, so it is correct and safe to use neutral cleaning agents such as royal salt scientifically. Both natural spar and jade have cracks, but artificial fillers are rejected in business because they can react with royal salt, and many blindly xenophobic people hate them because they are produced in Japan.