Stone Quarry

Rock Quarrys are a place to gather stones. These would be a villager structure, with a populated and abandoned/depleted variant. Rare rock like marble, limestone, etc could generate n these Quarrys. Very small amounts of ore could mix with these structures.

The villagers would live in tents and semi permanent structures. Chests with rock, raw ores in small amounts, and various axes and licenses would generate in the tents and near the dig site. 

It would be cool if infested stones and lizards spawned in this structure. The lizards would be small shy, and scared creatures clinging vertically on the rock faces.

I personally thing this would be a great way to introduce new stone types to the games and would be a awesome way to hunt for those new stones.