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|group=MiscellaneousMine doors and support beams|materials=* 50 12x [[silver sheet]]s* 1x [[rivetsdoor lock]]* 10 50 [[silver sheetrivets]]|result=* 1 '''{{PAGENAME}}''' (61 121.00 kg)

==Description==An item used to limit access to a mine''A door made from the purest silver.''

===Usage===*Activate the A '''silver mine door, right click a mine tile border and select ''build door''is an item used to limit access to a mine.

==MaintenanceUsage ==*Activate the mine door, right click a mine tile border and select ''Build door''.

Each improvement uses 0Once installed, the silver mine door slowly loses strength if off deed. To keep it from decaying, it has to be repaired.1kg of To repair the silver mine door, activate a [[silver lump and raises the strength of ]], right click the mine doorand select ''Improve''. The lump does not need to be glowing hot to be used.

The maximum strength you can improve a silver mine door to depends on the silver lump and your blacksmithing skill. The formula is 100 * (Lump QL / 4 + Blacksmithing skill / 2).  Each improvement uses 0.1 kg of the silver lump and raises the strength of the mine door by a fifth of the difference between current strength and maximum strength. The following graph shows the decay on deed of a silver mine door starting at 7400 strength over the course of over a year. The Mine door has been repaired a few times since.The decay has been about 30 28 strength per day on average over a the whole period of 192 400 days. [[File:Silver mine door decay.png|Decay of a Silver mine door]]

*Needs door lock.*Needs a high blacksmithing skill with a high ql QL door lock.

== See also ==* [[Mine door (rockgold)]], * [[Mine door (woodstone)]] and * [[Mine door (steel)]].* [[Mine door (wood)]]

[[Category:Babel/MMine doors]][[Category:Mine doorsand support beams]][[Category:Babel/M]]