Seren stone

Seren Stones are crystalline rocks that require 89 Mining to mine from. They can be found in the Trahaearn area of Prifddinas, surrounding Seren Crystals. Each Stone can be mined 70 times before it goes through a trapdoor. No ore is produced from these stones, making them similar to ivy, but they give the highest rates of Mining experience in the game, gaining 296.7 xp per succesful mining attept.

Seren Stones do, however, give corruption, roughly every third successful mining attempt.

With a golden mining suit and a lava titan familiar, at level 99 Mining, Seren Stones are roughly 150k xp/hr. If the Voice of Seren is active in the Trahaern clan, experience rates can be reached of 200k-225k xp/hr.

Mining 100 corrupted ore gives the title "of the Trahaearn".