Blue Shard

Description
The Blue Portal Stone Shard is a common item usually dropped by enemies in the starter levels. It can also be found more rarely while mining starter-level ores. Two of these shards can be used to craft a Blue Portal Stone.

Source

 * Most low level enemies.
 * Mining ores on low level islands.

Crafting Uses

 * Blue Portal Stone
 * Arcane Compass
 * Arcane Mirror