Things You'll Need
Instructions
Enter ̶0;/gamemode <player name> <1>̶1; at the command prompt. A server operator can enter this command on your behalf if you are not an operator yourself. This command places the targeted player in creative mode.
Equip a pick as your current tool. Unlike during normal gameplay, the type of pick does not matter in creative mode. You can use the most basic pick to break through any block, even blocks that normally would break a particular pick in a fraction of a second.
Hit the block of adminium with the pick to break it.