If you use the data pack for the extended height and world generation for the latest snapshot, there can sometimes be massive ore veins generating. In the patch notes, it sai\id there would be large veins, but I don't think they were supposed to be this big.
seed: -1736625532464286500
you have to use the 1.17 datapack for extended height too.
coordinates: 497 -12 -711
put a repeating command block and fly around with this command: command(repeating command block): /execute at @p run fill ~8 ~8 ~8 ~-8 ~-8 ~-8 air replace #minecraft:base_stone_overworld
edit: this might be Works As Intended because a developer posted a picture of this and it was the same size, but I think it shouldn't be this big.
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Can confirm too. Found a vein that has literally over 1000 iron ore blocks. It is highly unbalanced.
I think this is Works As Intended since a developer posted a screenshot of a large vein and it was like this.
I definitely doubt this being WAI. I mean literally thousands of iron ores on a single place? I am expecting that this will be fixed soon, because it is like a not gamebreaking, but quite an important bug to be fixed. (I think)
On fresh map of 21w17a with latest caves/cliffs data pack — TP'd far from spawn due to: https://bugs.mojang.com/browse/MC-197616 causing lag/freeze issue for me
I am also very surprised at this "works as intended" resolution? There cannot be a basis for this...
Release notes for 21w16a and 21w17a both specify "RARE" .... see my screenshot. I got sick of using "replace" because it has limits ... finally decided to use an x-ray resource pack to make the point.... literally 100-or more chunks with several 1000 iron ore "large veins" ... No... this is not WAI, they should be rare.
seed: 2636744822075268035
Using x-ray resource pack -> /execute in minecraft:overworld run tp @s 8635.88 -35.75 9634.91 -253.23 -5.85
Please can this be verified with the developers ... honestly, 100s of chunks, many 1000s of iron ore only veins ... this screams something is broken.
BTW @osfanjoshua – where is this "developer screenshot" - please provide a source as evidence of WAI (I know it's mentioned in the main description, but not attached to this post AFAIK)?
Sorry to labour this point, but additional reading of the latest release notes indicate the following:
= LARGE ORE VEINS =
Ore veins are now slightly rarer and slightly smaller (but they are still large!) — (should be rarer and smaller)
The ores in the vein are clumpier and less evenly distributed — (should be less evenly distributed, nothing like the screenshots)
If you are lucky you may find a raw ore block in the vein — (see my latest screenshot... 11 in one vein spanning 3 chunks, even if it were a valid "large vein" of that size, 11 ore blocks? when the release notes indicate a clear rarity of these ore blocks at 1 per vein, maybe 2 or 3 if you wanted to push it)
(for 3rd point...... seed: 2636744822075268035 /execute in minecraft:overworld run tp @s 8566.65 -36.96 9571.99 643.47 -33.30 – cleared the 3 chunks directly in front of me from -8 to -38, replaced deepslate and tuff with air)
Right. Thanks for the correction from the mojira reddit forum, and the associated official twitter links - this is in fact WAI (I'm very surprised). But the key is apparently to attempt this in survival, because you would have to work your way in the right direction and break the right blocks to get the benefit of this... so yes, in survival it may prove interesting.
https://twitter.com/henrikkniberg/status/1384924653597216777/photo/1
https://twitter.com/henrikkniberg/status/1385457395862839296
https://twitter.com/henrikkniberg/status/1387422698649923585
Could you provide the seed and coordinates of where you took that screenshot?