Leo Ray first considered the specific types of Magic Crystals, because Magic Crystal is a very broad term, and there are extremely many types.
Whether it's the Light Crystal Stone needed by the Light Healing House, the Dark Magic Crystal required by the Guardian Defense Mechanism, or the Wind Spirit Stone and Blue Moonstone needed by the Illusory Vision Tower, they all belong to a type of Magic Crystal, including the Demon Energy Luminous Crystal.
It's just that these magic crystal veins are relatively common, with large mining volumes, some of which are widely used in the Human World, and do not fall into the category of rare Magic Crystals, and don't even have quality distinctions.
As for the so-called high-quality Magic Crystals, there are mainly two characteristics.
The first is that the Magic Crystal itself is extremely rare and powerful.
The second is it belongs to the higher quality kind among the distinguishable quality Magic Crystals of the same type.
