Block of Emerald

A block of emerald is a decorative mineral block.

Obtaining
Blocks of emerald can only be mined using an iron or diamond pickaxe.

Usage
Blocks of emerald are often used to store emeralds in a compact fashion, or otherwise used as an expensive construction block.

Beacons
Blocks of emerald can be used to "power" a beacon. The top layer must be at least 3×3 optional lower layers can be adding as 5×5, 7×7, and 9×9 from top to bottom. The layers do not have to be entirely emerald blocks, as they may also contain blocks of iron, blocks of gold, and blocks of diamond.