When placed on top of a Corundum Cluster of the same color, it can grow upwards.
You cannot "plant" Corundum on dirt or stone. It must be attached to a Corundum Cluster block. Designing a Manual Corundum Farm quark corundum farm
A Quark Corundum farm is one of the most visually satisfying projects in modded Minecraft. Whether you need the crystals for their vertical redstone capabilities or you just want to build a glowing, neon cathedral, automating the process saves you hours of cave-diving. When placed on top of a Corundum Cluster
Place a solid block behind the Clusters. On top of that block, place a Piston facing the area where the crystal will grow (usually at the second-block height). Designing a Manual Corundum Farm A Quark Corundum
If you’re early in your playthrough, a manual farm is the easiest way to start.
To truly master the mod, you’ll want an automated setup. Since Corundum behaves similarly to Sugarcane or Bamboo (growing upwards), we can use and Pistons . Materials Needed: Corundum Clusters (Base blocks) Redstone Dust Hopper & Chest (for collection) Water buckets (for a collection stream) Step-by-Step Instructions:
If you want to move your farm to the surface or your main base, you use a Silk Touch pickaxe to harvest the Clusters. Breaking a Cluster with a regular pickaxe only drops shards, which cannot be used for farming. 2. Biome and Depth