Ore distribution (like JER) | MC Eternal | Page 1

sage rose Jul 8, 2025, 10:02 PM

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the nice @mild cloud recently ran the JER data for MCE2 1.1.0.2 but because of some bugs it can't yet be added to the pack. Because I like data I went through the results and made some nice graphs for you to look at.
~~(post is probably getting expanded, stay tuned for more data)~~ done ✅

Note: the y-axis in the graphs is the relative frequency of each ore. For example: diamond ore in overworld occurs most often at around height 3 (=100% on the y-axis). The absolute frequency from ores is thus not directly comparable.

vanilla ores in overworld
takeaway: go mine between 0 and 20 for everything

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modded ores in overworld
takeaway: almost everything is everywhere, doesn't really matter

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the important ores in the great below

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the ones in nether you care about

subtle dagger Jul 9, 2025, 1:43 AM

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Is it possible the nether ancient debris is off? I mined a bunch at y107 and got 14 ancient debris and when I mined at y14 I got 88 debris. I might have mined a bit more on y14 since I was finding way more than y107 in general.

Here's the areas I mined to give an idea of the amount I mined.

swift dagger Jul 9, 2025, 2:09 AM

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subtle dagger Is it possible the nether ancient debris is off? I mined a bunch at y107 and got...

Most likly an smaple size issue.

subtle dagger Jul 9, 2025, 2:12 AM

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since there's mega veins sometimes of ancient debris I wonder if there was one at a high y level in their sample. I'll mine more at 107 tho too

sage rose Jul 9, 2025, 2:21 AM

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The data sample is a 1000 block radius circle or something I think

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Overworld is 5000 I think

subtle dagger Jul 9, 2025, 2:22 AM

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hmm ya I think there might be a mega vein in your sample. I just mined an extremely sizeable amount at 107 to only get 1 ore, then I hit a mega vein

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This amount netted me 1 debris before I hit the mega vein

sage rose Jul 9, 2025, 2:23 AM

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Mega veins aren't that rare, wouldn't be surprised if there were many within 1000 block radius

subtle dagger Jul 9, 2025, 2:26 AM

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ye, I think they can happen at any y level since one guy got a netherite one at y20 in general chat

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it's very very consistent at y14 and extremely rare at 107

stark needle Jul 9, 2025, 3:09 AM

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mega veins were part of why JER was unreliable in mce1, it would skew results of where to mine with the large ore veins messing up the distribution

sage rose Jul 9, 2025, 11:16 AM

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Y'all severely underestimate how big 1000 block radius is. That sample looked at like 628 million blocks, you can't just mine a few hundred and claim the data is wrong.
That said mega veins obviously impact rare blocks more than common blocks, it's not unlikely that it has some impact on the data.
Btw for the vanilla ores in overworld I compared them to the ore distribution in the Minecraft wiki and it roughly matches that, so I generally trust that data.

iron halo Jul 9, 2025, 12:24 PM

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sage rose Y'all severely underestimate how big 1000 block radius is. That sample looked at...

In terms of debris, the charts above don't actually correlate with the vanilla distribution at all, so the mega veins have definitely skewed the results

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Unless generation has changed of course

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Data above is only looking at ~1200 chunks compared to this graph of 127000

sage rose Jul 9, 2025, 12:32 PM

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Would probably be interesting to run the JER thingy a few times and see if there a big differences in those results. Debris is so rare that different (modded) biomes and mega veins and all the stuff that can change might have bigger impact on it compared to more common blocks.

iron halo Jul 9, 2025, 12:33 PM

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100%. Only real way to get a decent sample might be to run a profile over 50 or so radius of regions using region scanner, but that would take a really long time

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Even still might be crazily skewed results

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The mega veins should only occur 1/4000ish chunks but with the quantity they have it will ruin the results

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Given a regular chunk has 2 debris

subtle dagger Jul 9, 2025, 5:50 PM

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sage rose Y'all severely underestimate how big 1000 block radius is. That sample looked at...

I understand, I just think y107 is a gambler lvl but a low level like y14 is a consistent lvl.

The chart doesn't have to reflect that but it should at least be a footnote that it's more consistent at y14 or so. Since not everyone might need a mega vein, some ppl might want to just quickly get a few debris to start with when they enter the nether.

sage rose Jul 9, 2025, 5:51 PM

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No one prevents you from running the JER thingy (however that works) and give me better data to make a better graph :p

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also it does show that if you look closely, don't look at a single y level but a few above and below and you'll see that the high one is an outlier while at the bottom it's more even

cold skiff Jul 9, 2025, 9:18 PM

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sage rose 3) the important ores in the great below

is there one for normal ores in the great below

sage rose Jul 9, 2025, 9:39 PM

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cold skiff is there one for normal ores in the great below

great below vanilla ores

cold skiff Jul 17, 2025, 6:14 PM

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I'll do one better is there one for the end ore

dapper orchid Jul 18, 2025, 11:52 PM

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sage rose 3) the important ores in the great below

You can get pretty much uranium from toxic caves

sage rose Jul 18, 2025, 11:52 PM

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afaik it's a different uranium

dapper orchid Jul 18, 2025, 11:53 PM

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sage rose afaik it's a different uranium

It can be smelted tho

subtle sentinel Jul 22, 2025, 3:27 AM

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Great data... specially for overworld

idle verge Jul 22, 2025, 5:43 PM

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sage rose afaik it's a different uranium

it has identical recipe matching since its tagged properly

summer brook Jul 31, 2025, 2:02 PM

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im mining at y6 and havnt found a single bit of ancient debri yet

grizzled otter Jul 31, 2025, 2:35 PM

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summer brook im mining at y6 and havnt found a single bit of ancient debri yet

ancient debris is most common around y15

paper sedge Aug 15, 2025, 10:57 PM

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sick

merry inlet Aug 22, 2025, 12:22 AM

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paper sedge sick

nice pfp twin

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where does jade spawn?

gusty fossil Aug 24, 2025, 11:06 AM

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just a tag for people looking for this with discord search: world_gen.json, world_gen

short ingot Aug 24, 2025, 9:00 PM

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do super viens exist for all ores? uranium included?

sage rose Aug 24, 2025, 9:01 PM

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they should exist, yeah, just checked the code
(but only in the great below of course)

short ingot Aug 24, 2025, 9:08 PM

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hell yea. is there a good way to find them or is it just get lucky

sage rose Aug 24, 2025, 9:08 PM

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considering it would be hard to find the indicating flower circles in the great below it's just luck I guess

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but of course ritual of scrying can always help

short ingot Aug 24, 2025, 9:09 PM

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gotcha thank you

opal leaf Aug 26, 2025, 10:21 AM

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even enderium ;-;

woven chasm Aug 28, 2025, 7:27 PM

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short ingot do super viens exist for all ores? uranium included?

Just find an alex's caves rad biome

rugged lava Aug 28, 2025, 9:44 PM

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should i do the fission reactor?

sage rose Aug 28, 2025, 9:45 PM

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wrong thread for questions like that

rugged lava Aug 28, 2025, 9:45 PM

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ops

rose yoke Sep 15, 2025, 3:20 PM

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anyone know where i can get desh dust / desh ingot and ostrum ingot?

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i saw that more mekanism has it but do i have to use ad astera to get it?

sterile sail Sep 15, 2025, 3:23 PM

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yup, those are other planet ores

rose yoke Sep 15, 2025, 3:24 PM

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aaa okay. are they on the moon? never used ad astera before so not sure which planet

sterile sail Sep 15, 2025, 3:31 PM

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yeah, desh is the moon and ostrum is from Mars

rose yoke Sep 15, 2025, 3:32 PM

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thank you so much

covert vale Nov 9, 2025, 6:15 AM

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i think the distribution might be skewed for fluorite in the great below

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the graph seems off

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-14 is mostly air and ive yet to find any fluorite after digging for a while

#Ore distribution (like JER)