Exhausted silver rock
The Exhausted Silver Rock is a silver bearing rock in the Al Kharid mining site. Unlike the other 5 rocks, this one here has been mined to the point where it has no more silver ore. It is in a line with 3 other silver rocks, with itself being the south-westernmost one.
After players mine this rock, they would get a message saying "This rock has become exhausted due to heavy mining. Please use one of the other rocks." After a recent update, however, the rock has no "mine" option and appears like any other rock with no ore.
This particular rock is exactly the same as all the other silver rocks in RuneScape except the fact that it will never respawn. Also, the mining of this rock is not related to multiplayer and respawning is independent for individual players. Players arriving at the Al Kharid mining site for the first time often mine this rock but others can't see it available to mine. To other players, it looks as if the player is mining an empty rock.
As of 7 September, 2010, mining this rock for the first time counts towards the Lumbridge and Draynor Tasks.
Notes
During a period of time, mining this rock (if available) did NOT count towards the Lumbridge and Draynor Tasks, despite the fact that doing so would seem to have met the requirements for the task in question.
