Coal is obtained from mines that have been repaired a certain number of times (at least 7, but exact relationship undetermined). One or more of the crystals in the mine will produce coal each time it is worked (unless it spawns a gem)
Coal is required by a Coal-Fired Clinker Vat.
It should be noted that Coal- and Petroleum-Fired Clinker Vats also existed in Tale 2, but this was a bug , and (I think) fixed later in the tale.
Coal Findings
As of 19th November, people have started to report coal as a byproduct of mining in certain mines.
In an attempt to isolate what and where causes this, the following table has been created.
Location ----
Metal ----
Gem ----
Repair Level ----
Mining Skill Level ----
Location
Metal
Gem
Repair Level
Mining Skill Level
-601, 215
Copper
Quartz
7
3
654, -3165
Iron
Ruby
15
3
821, -59
Iron
Quartz
7
3
1195, 7120
Copper
Quartz
9
6
1375, 2034
Copper
Quartz
11
1
1033, 3793
Copper
Topaz
7
3
1257, 1923
Iron
Topaz
8
3
2045, 1846
Copper
Quartz
8
3
3064, 4344
Copper
Quartz
7
1
387, -3853
Aluminium
Ruby
7
2
1593, 2140
Copper
Quartz
9
3
851, -2826
Copper
Quartz
7
1
sorry, edited and wiped out someone's data. my apologies. -Philly
21 May 2008 - It was noted that a mine in Kush (592,-2727) started producing coal at Level 13. However, on being repaired 17 times, it stopped producing coal. It produced exactly 250 coal in in those 4 levels of producing coal.
