In the gem and jade market, rough is an unprocessed ore that remains in its natural state. For those who love jade or are engaged in related industries, how to accurately determine whether there is jade in the rough is a crucial skill. This article will introduce in detail the methods and techniques for distinguishing whether the rough stone contains jade, and help readers improve their ability to identify.
1. Observe the appearance of the rough stone.
Luster: Jade usually has an oily or vitreous luster, which is different from the luster of other ordinary stones. If the rough is viewed in sunlight or under strong light, if the surface has a warm luster, it may be jade.
Color: The colors of jade are rich and varied, and the common ones are green, white, yellow, etc. If these colors are present in the rough, especially if the color is uniform and vivid, it may be jade.
Texture: The texture of jade is usually delicate and warm to the touch. By touching the surface of the rough stone, you can feel whether its texture is delicate and warm.
2. Use professional tools.
Flashlight: By shining a flashlight on a rough stone, you can observe its internal structure and texture. Jade usually has a unique texture and internal structure, such as "emerald", "cotton wool", etc.
Magnifying glass: The surface details and internal structure of the rough can be observed through a magnifying glass. The surface of jade is usually smooth and the internal structure is dense.
Hardness tester: Jade has a higher hardness and can be tested using a hardness tester. If the hardness of the rough is close to or exceeds the hardness range of jade, it may be jade.
3. Identify the types of rough stones.
Learn about different types of jade: Different types of jade have different characteristics and ways to identify them. For example, jadeite has a unique "jadeite" and "cotton wool" structure, while Hetian jade is known for its oiliness. Therefore, familiarity with the characteristics of various types of jade is the key to distinguishing whether the rough contains jade.
Distinguish from similar ores: Some ores are similar in appearance to jade and can be easily confused. For example, quartzite, marble, etc. By comparing their differences in physical properties, chemical composition, etc., they can be distinguished from jade.
4. Practical experience and professional knowledge.
Distinguishing whether a rough stone contains jade or not requires a certain amount of practical experience and expertise. Here are some suggestions to help readers improve their discernment:
See more and compare more: Observe a variety of rough and jade samples frequently, and gradually gain experience by comparing their characteristic differences. At the same time, you can participate in some gem and jade exhibitions or exchange meetings to exchange and learn from professionals.
Learn professional knowledge: Read relevant books, articles, or courses to learn the basics of gems and jade, and identification skills. Learn about the characteristics and identification methods of different types of jade, as well as the key points to distinguish similar ores.
Hands-on: Hands-on work under the guidance of professionals to hand-select and identify rough stones. Through continuous practice and summarizing lessons and lessons, I will gradually improve my ability to discriminate.
In conclusion, distinguishing whether a rough stone contains jade requires a combination of observation of appearance, use of professional tools, identification of species, and practical experience and expertise. Only by continuous learning and practice can we improve our ability to distinguish and more accurately judge whether the rough contains precious jade.