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[nuget102]

It's been quite some time since I've played,  and never paid attention to how many bars a single one makes but I just assumed it was 1 bar per ore.

I have limonite on my map and it produces 4 bars per ore. What about other ores? Is it 4 bars per ore regardless of the ore? Do certain ores make more bars than others?

[Sutremaine]

It's always four bars per boulder of ore. Making bronze from ore requires two boulders, so you get eight bars. Same for other alloys you can make directly from ore.

Edit: Some ores do in fact have a chance of producing a second type of metal. This is limited to tetrahedrite (20% chance of silver) and galena (50% chance of silver). They count as silver ore if you're making alloys from ore.

It's been a while since it was one bar. That was back when your chance of getting a mined boulder scaled with the miner's skill level.

[nuget102]

It's always four bars per boulder of ore. Making bronze from ore requires two boulders, so you get eight bars. Same for other alloys you can make directly from ore.

Edit: Some ores do in fact have a chance of producing a second type of metal. This is limited to tetrahedrite (20% chance of silver) and galena (50% chance of silver). They count as silver ore if you're making alloys from ore.

It's been a while since it was one bar. That was back when your chance of getting a mined boulder scaled with the miner's skill level.

Thanks for the info! I didn't see it mentioned in the wiki as to how many bars per ore, unless I missed it.

[Starver]

It's mentioned, in passing, on http://dwarffortresswiki.org/index.php/DF2014:Ore

[nuget102]

It's mentioned, in passing, on http://dwarffortresswiki.org/index.php/DF2014:Ore

Ah,  I see now. Thanks.

[Leonidas]

It's the same logic as getting four blocks of stone per boulder. Several versions ago nearly every tile produced a boulder, so stone clutter was a big problem. Toady's solution was to make every four tiles produce a boulder (except gems), and then have the boulders produce four times as much.

[NESgamer190]

It's the same logic as getting four blocks of stone per boulder. Several versions ago nearly every tile produced a boulder, so stone clutter was a big problem. Toady's solution was to make every four tiles produce a boulder (except gems), and then have the boulders produce four times as much.

Exceptions being had for a very useful material, and very rare materials, like platinum and aluminum regarding the 4 tile rule, and metal ores I think had a 3 tile to 1 ore deal (excepting those super-rare metals of course)?

[Leonidas]

You're right. Ores have a 33% chance to drop a boulder, which then produces four bars. Gems and adamantine always drop a boulder.

[Sutremaine]

Exceptions being had for a very useful material, and very rare materials, like platinum and aluminum regarding the 4 tile rule,

Platinum can be found in veins, and these veins return as much as a vein of, say, limonite or cobaltite.

Layer stone: partial return
Vein stone: partial return
Cluster stone: full return
Gems*: full return
Deep special: full return.

*Gems are stone with an IS_GEM token. Their full return comes not from being gems, but from appearing in small clusters. Modding the raws to make them appear in veins will give a partial return.