Good day to you again! This is one of the gems I've been seeing for years. I never actually extracted it, though. This is the original Pigman design by Mojang. In case you didn't know before Villagers became a concept, there were originally supposed to be Pigmen in their place. Their currency was supposed to be the Rubies. They were replaced by Emeralds due to their colouring. One of the game developers is colourblind. It was difficult for him to tell the Ruby apart. We ended up getting Villagers in place of these Pigmen. But In the Nether update, they were added into the Nether and can actually trade with you for gold! I personally enjoy their new design quite a bit, but this is a hidden gem worth seeing again.