Unimportant Pillar

Unimportant Pillars are mine-able structures found in Ruinous Caves. Hitting them with the pick axe will cause a cave-in effect similar to those randomly generated in the caves of Reign of Giants. After several hits, the pillar will be destroyed, leaving a useless pile of rock marking where it used to be. There does not seem to be any effect of knocking down all the pillars in a room, such as the entire ruin collapsing and killing the player.

Items and their chance of falling from the ceiling:

[someone smarter than me code dive!]

Strategy: Build a fire pit, or other permanent light source when mining pillars. Many scorpions, ladybug dudes, and mole worms will fall from the ceiling along with substantial amounts of loot, but will often fight amongst themselves as well as take damage from falling debris. This is an excellent way to collect minerals, including gemstones, as well as meat items. Wigfrid excels at this technique, as she can quickly regain health by killing damaged enemies, even while poisoned.