Clue geodes are rocks that can be found while training Mining (excluding the Motherlode Mine). Searching them will give players a clue scroll of the same difficulty as the geode given. Like clue scrolls, players can only have one of each type of clue geode in their possession.
If a player possesses a clue scroll of the same difficulty as the clue geode, they will be unable to search the geode until the clue scroll is no longer in their possession. There are four types of clue geodes:
Like skilling pets, the rate of obtaining clue geodes are dependent on the player's mining level and the type of rock the player is mining. A ring of wealth (i) will double the rate of clue geodes for mining rocks in the Wilderness.
Assuming the player reaches the "clue geode table" while mining, players will then have a 40% chance of it being an easy clue geode, a 30% chance of it being a medium clue geode, a 20% chance of it being a hard clue geode, and a 10% chance of it being an elite clue geode. If a player does already have other tiers of clue scroll in their possession, it does not increase the chance of getting the tier of clue scroll which they don't have yet.
The chance of obtaining a clue geode of any difficulty is 1 in $ [X/(100+Y)] $, where $ X $ is the base chance and $ Y $ is the player's mining level. For example, a player mining a runite rock at level 99 mining will have a 1 in 212 chance of obtaining a clue geode, with decimal values floored.
The table below displays the base chance of obtaining a clue geode.
|Copper, tin, clay, blurite,|
ash pile, iron, limestone,
silver, sandstone, granite