Tokkul

Tokkul is the only currency of the TzHaar people residing in the underground TzHaar City. It is made from obsidian, a volcanic glass (actually hardened bodies of dead TzHaar); it cannot be created by players. Tokkul is sometimes referred to as TokKul by some of the NPCs in the city. Apparently, Tokkul is made out of corpses of the TzHaar, as said in a Postbag from the Hedge letter, which is why players cannot trade Tokkul with other players.

According to the Wise Old Man in Postbag from the Hedge 12 and 14, the name TokKul means, roughly, rock token or material value.

Getting Tokkul
Since Tokkul isn’t tradeable, it is difficult to get. There are currently only three ways to get Tokkul:
 * Competing in the TzHaar Fight Pit
 * Competing in the TzHaar Fight Cave
 * Killing the TzHaar citizens and guards

TzHaar Fight Pits
The TzHaar Fight Pits minigame, along with selling to the TzHaar shops (this can no longer be done due to an update by Jagex), was the first way to get Tokkul. Tokkul is only received from the fight pits if you are its champion. The amount of Tokkul you receive as a reward is based on how many participants are in that round.

TzHaar Fight Cave
The Fight Cave is the ultimate gauntlet for players proving themselves worthy of a Fire Cape. Players obtain variable amounts of Tokkul as a consolation prize depending on how far they progress before succumbing. If a player completes the Fight Cave, they will receive 16,064 Tokkul along with a Fire Cape.

Spending Tokkul
After a player earns a good amount of Tokkul, they have three places to spend it in.

Note: The Tzhaar shops no longer offer a discount if a player is wearing the Karamja gloves 1 after the Personalised Shops update.

TzHaar-Hur-Lek's Ore and Gem Store
Note: prices without an alternate selling price listed are only the starting shop prices, these prices will likely drop dramatically as you sell more to the shop. onyx bolt tips add 1 each one you buy. A recent update has dramatically increased the prices of all these items.

Trivia

 * TokKul is spelt 'Tokkul', when in your inventory. But when you attempt to value something at a Tzhaar store it reads 'TokKul'. It is unknown whether this is an error in the coding of the game or there purposely.
 * With the personalised shop update, the price of the uncut onyx gem was increased by a factor of 9. The buying and selling prices of other items were also somewhat increased, thus devaluing the Tokkul currency. This angered some players who were saving up to buy an onyx gem, and had therefore invested substantial funds in Tokkul.
 * With an update in December 2009, Jagex made it so that it is no longer possible to sell items to the Tzhaar shops. It used to be possible to do this, and many people bought onyx gems for much lower than the GE price with very little effort, making millions in the process.
 * The Mi-go, a race from the works of H.P. Lovecraft mine a metal called tok'l. The tok'l is used to create a Mi-go's "brain cylinder". This is remotely similar to the TzHaar in that TokKul comes from a TzHaar when they die. The name is similar, while the use is an opposite.

US$