There are two ways of getting [plur]Slot Stone[pl:"Stones"]:


Firstly: Equipment extraction.

If the equipment is extractable, click on the equipment and open the 'Boost/Modify' window.

Although not essential, using Socketing Aid: Extraction yields more Slot Stones. Take a look around Luna Market.


Secondly: Buy Slot Stones.

If equipment extraction is not an option, you can use Gold Ingots to buy Slot Stones at the Gold Sand shop.


Remember that you need Slot Stones to upgrade Manastone Slots.