Crystal Cluster - Alec-WAM/CrystalMod GitHub Wiki

Clusters are the best way of obtaining CU in the Crystal Mod. Clusters are randomly generated around the world deep underground. They will have a random power output between 10 and 44 CU/t. While you are draining the cluster of energy its "health" will dwindle. The power output will begin to decline the lower the health of the cluster. If you place a glowstone block below the cluster it will begin to regenerate health. The speed is determined when it is generated. The speed can be between 1 and 3 units of health a tick. It will take a full Minecraft day(20 minutes) to refill a depleted cluster with a regen speed of 1. Clusters come in the four basic Crystal colors Blue, Red, Green, and Dark.