At the beginning of every Fist of Guthix minigame, each player receives 1,000 elemental runes, along with 300 catalytic runes. In Fist of Guthix, when players put elemental runes in the price checker, it says that they are worth 2 gold each, even though the runes cannot be brought outside of the minigame.
Unlike Fist of Guthix, during the Stealing creation minigame players must make their own elemental runes as well as catalytic runes. These are processed in a special kiln from one of 5 grades of sacred clay and yield different amounts of runes. Players must have higher Runecrafting levels to process higher levels of sacred clay as shown in this table: