An emerald is a rare precious gemstone item that is used in crafting or for upgrading a blockhead's portal. Emeralds are best harvested using a pickaxe.
Emeralds are green, small and square in appearance. They distinctively radiant with a slight green luminescence under the lack of direct sunlight.
Where Found
Emeralds are naturally found in the cavernous networks and underground regions of the Blockheads world. They are typically surrounded by hard rock, such as stone. Occasionally, they can be found underwater in a subterranean confined or perched aquifer.
Portal Upgrade
Emeralds are needed to upgrade a portal to an emerald (level 4) portal, allowing a blockhead to craft an emerald pickaxe.