Wood crystal: green crystal, green ghost, green hair crystal, green tourmaline, green agate, amethyst, etc.
Water-based crystals: black crystal, tea crystal, nigger, obsidian, black tourmaline, blue crystal, aquamarine, black agate, etc.
Fire crystal: red crystal, red ghost, red hair crystal, red tourmaline, red agate, garnet, amethyst and so on.
Earth crystals: topaz, yellow ghost, topaz, agate, yellow tiger eye stone, topaz, etc.
Make up for what is missing.