Are there fake amethyst caves?

Amethyst caves are generally not fake, they just vary in texture.

During the formation process, natural crystals are often affected by the environment and always contain some impurities. When observed against the sun, you can see faint, uniform and fine horizontal stripes or catkin-like substances.

Amethyst caves used to be called thunder eggs, which are round or oval and hollow. The inner wall is covered with many amethysts, growing towards the center of the sphere. After the spherical shape is cut, it becomes an amethyst hole that people use for decoration or for Feng Shui purposes.

The following methods can be used to identify the authenticity of jade:

1. Real jade has a warm and moist luster, translucent and opaque, and there are cotton wool or other impurities in the jade. , is a normal phenomenon. Fake jade has no aura, is dry in color, dark and dull, and some have bubbles inside.

2. Water identification method: Drop a drop of water on jade, and if it becomes dewdrops and does not spread for a long time, it is real jade; if the water droplets disappear quickly, it is a fake.

3. Hang the jade to be identified with a thread in the air, and tap it gently. The sound of the real jade will be clear and sweet, and it will spread far and wide. Fake ones will not produce beautiful sounds (this method is suitable for slightly thin jade pendants).

4. Hand touch method: When the real jade is weighed in the hand, it will feel heavy, while the fake one will be lighter. In addition, if you touch real jade with your hands, it will feel cool and lubricated.

5. Inspection method: Point the jade to a bright place, such as sunlight or lights. If the color is clear, it is naturally real jade.

6. Tongue licking method: Real jade will feel astringent when licked on the tip of the tongue; while fake jade will not feel astringent.

7. View with a magnifying glass: Put the purchased jade under a magnifying glass to view, mainly whether there are cracks. Those without cracks are superior and high-quality jade, and those with cracks are second. Even if it is real jade, its value will be greatly reduced if there are cracks. The more and more obvious the cracks are, the lower the value will be.

8. Knife scratching method: Real jade is relatively hard and will leave no trace when scratched with a pencil sharpener. Fake jade is softer and will show traces when cut with a knife. When cutting with the knife, you should choose the bottom or an inconspicuous part of the jade. In addition, some Xiuyu jade may have scratches due to its hardness between 2.2-3, so you should pay attention to identification during actual operation.

9. The fractures of real jade are uneven and the material structure is dense. The fake ones with neat and shiny fractures are made of glass; the fractures with rough material structure and no waxy luster are stones. Use a magnifying glass of more than seven times to observe carefully and identify the edges, corners, holes, hollows, and engraved lines. Everywhere, clues of fakes can be found in the smallest details.

Secondly, the following methods can be used to identify the types of jade and ancient jade:

1. For old jade and new jade, it can be identified from two aspects: old jade There is a layer of oxidized jade skin on the surface, commonly known as "pao pulp", which looks like the skin of a pear. It is obviously different from the natural color of jade, but is not found in new jade. Furthermore, judging from the subject matter of the carving, ancient jade is Symbols of rank and power are mostly mythical flowers, birds, and characters, such as dragons, phoenixes, etc. The new ones generally have auspicious themes.

2. The identification method that combines sight and touch - currently there are 10 yuan and 20 yuan pieces of jade on the market, and there are also jade worth thousands or tens of thousands. For this, people can use the high-quality The jade is moist, transparent, has a greasy feel, and feels warm when held in the hand. Through a magnifying glass or microscope, you can see that the interior of the jade has a fiber interwoven structure and a fine particle size; while artificial glass has no structure and bubbles can be seen. In addition, you can also use a knife to carve the jade in an inconspicuous place. What can be carved must be fake jade, and what cannot be carved is real jade. Because top-grade Hetian jade is becoming increasingly scarce, and can cost tens to hundreds of thousands of yuan per kilogram, while ordinary Qinghai white jade, Russian white jade, etc. only cost several thousand yuan per kilogram, so some people use it to pass it off as Hetian jade. The minerals of these jade are basically the same as those of Hetian jade, but the surface color is darker and not soft, and will become darker over time.