To maximize yield, you need a loop that takes exactly the length of the in-game respawn timer (approximately 12-18 minutes of active time away from the node).
To farm Corundum effectively, you have to understand its growth stages. Corundum starts as a (the base block). Over time, if there is air above it, a Corundum block will sprout. If that block is left undisturbed, it can grow up to four blocks high . quark corundum farm
No video, but here’s a simple schematic layout: To maximize yield, you need a loop that