Villager and Zombie Miners Feedback

In the deepist parts of the caves where villagers miners from the past. Villagers died from lac of food they starved to death, they tried to get to the surface. Then Players find a hole in the wall with a new type of rock called "Fallen rock" which has the proberty like sand and gravel. Behind it will be caves not mineshafes of holes mined in. Rails with Minecarts with goodies in it like abandened mineshafes but, The lost Mining villagers rome the area. If you cure the Mining villager it will give you rare ores that they found and you need to help them back to the surface and to the nearist village. If you come across them before finding a village they can show you to the nearish village.