You will need to venture beyond 500 meters to get to where the Kyanite resides. The Crystal Caves are deep purple in color.Dive down to a depth of around 350 meters and you will see the beginning of the Deep Purple vents, and then beyond that, the entrance to the Crystal Caves.Watch out for the Chelicerate that roams the Northern part of the Purple Vents biome.Head South from the Drop Pod location, around 900-100 meters, until you reach the Purple Vents biome.
