The crystal pickaxe is the best pickaxe available. 70 Attack is required to wield it and 71 Mining to mine with it. It features an improved mining speed compared to the dragon pickaxe, and players using it have twice the chance to receive strange and golden rocks.
The pickaxe is obtained by trading a dragon pickaxe and 4,000 harmonic dust to Lady Ithell in the Ithell Clan district of Prifddinas (also requiring Plague's End). Players may convert their crystal pickaxe back to a dragon pickaxe by speaking to Lady Ithell; however, they will not be given back the harmonic dust previously used to upgrade the tool.
If the player "destroys" the crystal pickaxe, they will not be given the dragon pickaxe back; the player will have to talk to Lady Ithell to receive a dragon pickaxe.
While the Imcando pickaxe has a higher level requirement, it only has a better mining success chance when used in the Lava Flow Mine; everywhere else, the crystal pickaxe is roughly 15% better.
The crystal pickaxe may be added to the tool belt. Players who wish to augment a crystal pickaxe already on their tool belt may speak with Doc to have it removed. He will only perform this service once.