Observer → Repeater (2 ticks) → Redstone to piston.
When corundum grows, piston extends, breaks the gem, retracts.
Before we dig into the farm, we need to understand the ore itself. In Slime Rancher 2 (Update 0.5.0+), Quark Corundum is a prismatic, spiky mineral that glows with a soft quantum haze. It is classified as a "Rare Export" resource. quark corundum farm
Primary Uses:
Layer by layer (from bottom up):
Y+2: Air (cluster grows here)
Y+1: Budding Corundum Block (facing up)
Y+0: Piston facing up + Redstone clock beneath
Side: Water stream flowing into hopper line
How it works: