The feature of man-made crystals is that they have daughter crystal nuclei. If the man-made crystal has a crystal nucleus, it is better to judge, because the crystal nucleus is generally a colorless long plate columnar shape, and the boundary line with the surrounding synthetic crystals is clear. However, some colorless artificial crystals were on the market in 2003, because both the crystal nucleus and the synthetic crystal are colorless, and there are some natural inclusions in the crystal nucleus or some bubbles between the crystal nucleus and the synthetic crystal, making some Inexperienced people can easily mistake it for natural crystals. If you observe carefully, you will find that the inclusions in the crystal nucleus only exist in the sub-nucleus column, and there is a feeling of being cut off by an invisible wall around it.