We can use the temperature test to distinguish the true from the false. Natural crystal stone will have a certain temperature induction at human body temperature, even if it is touched at room temperature, it will have a cold feeling. So, you can try to put the crystal stone in the palm of your hand and heat it a little before touching it. If you can feel the obvious coolness, it is likely to be a real natural crystal stone.
Another simple but effective method is to identify the crystal stone by its hardness. Natural crystal stone usually has high hardness and can scratch glass or cardboard. You can try to scratch the crystal surface with a hard object (such as a coin). If the crystal surface is not scratched or left with obvious marks, it is probably true.
Observing the internal structure of crystal is also one of the important methods to identify the true and false. Natural crystal stone usually has a naturally formed crystal structure, and irregular textures and bubbles can be seen inside it. However, artificial crystals or treated crystals often show uniform lines and bubble-free appearance.
If you are still not sure about your judgment, you can consider seeking professional help. Professional appraisers usually have rich experience and professional equipment, and can give accurate and reliable results in identifying the authenticity of crystals.
By observing the appearance, temperature test, hardness test and observing the internal structure, we can preliminarily identify the authenticity of natural crystal stone. If you want to identify it more accurately, you'd better consult a professional or use professional equipment for testing. Remember, for the purchase of natural crystal stone, it is also very important to trust reliable merchants.