The visor shows you hidden sections of large gems. You dont need to do anything, youll just see them when they come up. Even with the visor, they dont show up that often, so you might not always find them.
Thank you. In all my runs, just once I entered a block (got an archivement) and found some coins...that means I would have seen them if I had the visor?
Thanks and thanks for the game, immensely enjoying the game. Ive always been fascinated by procedural generation but rarely I saw that working so well.