How to identify the true and false crystal

Crystal is precious and rare mineral. How to identify the true and false crystal?
1, seeing. This is the most important point when buying crystals, because sometimes we can only see because of the limited conditions. Many buyers do not know how to pick crystals when they buy crystals. In the formation process of natural crystals, it is often influenced by the environment and always contains some impurities. When observing the sun, you can see a faint evenness of small stripes or catkins. The fake crystals are mostly made of slag and glass smelting, and they have been polished and coloured to imitation. There are no uniform stripes or catkins.

2, tongue and tongue. Even during the hot summer months, there are cold and cool feelings with the tongue licking the natural crystal surface. Fake crystal, no cool feeling. Based on hygienic considerations, this method suggests that it is better to use squats. Crystal's coolness is the principle of high thermal conductivity, not constant cooling, so friends do not think that crystals are always cool, and in the same situation, crystal cooling It is faster to get colder.

3, light. The natural crystal stands upright under the sunlight, and it can give off beautiful brilliance from any angle. Fake crystal can not. Seven-color brilliance is generally more obvious if there is ice crack inside the crystal. If there is no ice crack inside the crystal, this method is not applicable.

4. Check with a polarizer. There are four bright and four dark changes in the polarizer rotating 360 degrees. In every 90 degrees of rotation, there is a natural crystal with a dark spot, and there is no change in the glass. There are also bright and dark changes in man-made, but there are many colorful man-made light.

5, check with a magnifying glass. With more than ten times the magnifier examined under transmitted light, the apparent bubble can be basically identified as false crystal. The water bladder is very easy to separate.