|| It sparkles with cold energy.
The Blue Gem is an item occasionally dropped by Blue Hounds (which replace Red Hounds during Winter and also spawn at Walrus Camps) or found by digging up Graves. It can also rarely be found underground as the result of an earthquake or mined from Stalagmites and Ancient Statues. It can be used to craft an Ice Staff, Chilled Amulet, and Purple Gem.
Blue Gems can be used to turn Chester into Snow Chester by placing at least one in each inventory slot on a full moon. Snow Chester's special ability is preserving food longer like an Ice Box.
Reign of GiantsEdit
In the Reign of Giants DLC there is an alternative method of getting Blue Gems, by destroying Tumbleweed.
- The Blue Gem is the Winter counterpart of the Red Gem. When examined by most Characters, they will say something about the Blue Gem feeling cold, implying that it has frosty properties.