Gold crystal: ivory crystal, white ghost, white tourmaline, white agate, etc.
Wood crystal: green crystal, green ghost, green hair crystal, green tourmaline, green agate, prehnite, amethyst, etc.
Water-based crystals: black crystal, tea crystal, nigger, obsidian, black tourmaline, blue tourmaline, blue hair crystal, aquamarine, black agate, lapis lazuli, blue tiger eye, topaz, etc.
Fire crystal: red crystal, red ghost, red hair crystal, red tourmaline, red agate, garnet, red stone, etc.
Earth crystals: topaz, yellow ghost, topaz, agate, yellow tiger eye stone, topaz, etc.