Nether quartz vein rework

Picture a lush cave. Now imagine the quartz caves all around the globe but mainly South America. Large enough to enter and tour. If there was a quartz cave in the nether, there could also be structures that rival if not beat the overworld trial chambers in difficulty and loot! A new crystal mob could appear and blend in with the surroundings and are neutral, unless stepped on! That’s right, Quartz Spiders! I feel this will help players develop projects in the nether much faster having more POI to go to!