Contaminated Mineral

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The Contaminated Mineral is a deployable device in the Stationary Security Service game mode of Arknights.

The Contaminated Mineral will be added to the Deployment Waiting Zone at periodic intervals as long as Milan is present, but only one Mineral can be present at a time. As long as the Mineral is in the Waiting Zone, any unit but the Mineral itself, which costs a massive 70(!) DP, cannot be deployed!

Once deployed, the Mineral will release a burst after a while, dealing heavy True damage to friendly units in the two adjacent tiles to it (marked by a purple glow and forms a cross-shaped radius) and Stunning them; the Mineral is destroyed in the process. If the Mineral is destroyed before it activates however, the player can remove one of four random units (including Heat Clusters) on the Preparation Area for the rest of the operation in exchange for 15 Transfer Permits.


Stationary Security Service Nature's Premature Death


8000 0 300 20
DP cost Redeployment time Block count Attack interval
70 5 seconds 0 N/A


Auto Recovery
Effect Initial SP SP cost Duration
Can be attacked by allied units. After 25 seconds, deals 1000 True damage to allied units within Attack Range and Stuns them for 5 seconds
After being destroyed, view a random selection of 4 units from the Preparation Area and select 0-1 units to be removed (will not appear again in this battle) and converted into 15 Transfer Permits.
After activation, this unit disappears (will not appear again in this battle)
0 25