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Change Vein Size Exp Ore

Change Vein Size Exp Ore

DATA PACK
With this datapack you can change the vein size of all the ores of the mod Exp Ore
by Block_Legend001
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Updated Oct 14, 2026
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Miscellaneous Mod Support Utility
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With this datapack you can change the vein size of all the ores of the mod Exp Ore

Tutorial:

Extract the zip file insiede a folder,

To modify the vein size of the ores, go to `data/expore/worldgen/configured_feature` and change the `size` value in the desired JSON files (The maximum size is 64).

To modify the vein chunk of the ores, go to `data/expore/worldgen/placed_feature` and change the `size` value in the desired JSON files (The maximum size is 64). After that, select the file 'pack.mcmeta' and the folder 'data' and create an archive with the .zip extension, and put the zip file inside the folder 'datapack' of your world

Example:

{
  "type": "minecraft:ore",
  "config": {
    "discard_chance_on_air_exposure": 0.0,
  "size": 7, // Change this value
    "targets": [
      {
        "state": {
          "Name": "expore:exp_ore"
        },
        "target": {
          "predicate_type": "minecraft:tag_match",
          "tag": "minecraft:stone_ore_replaceables"
        }
      },
      {
        "state": {
          "Name": "expore:deepslate_exp_ore"
        },
        "target": {
          "predicate_type": "minecraft:tag_match",
          "tag": "minecraft:deepslate_ore_replaceables"
        }
      }
    ]
  }
}
{
  "feature": "expore:overworld_exp_ore",
  "placement": [
    {
      "type": "minecraft:count",
    "count": 9 // Change this value
    },
    {
      "type": "minecraft:in_square"
    },
    {
      "type": "minecraft:height_range",
      "height": {
        "type": "minecraft:uniform",
        "max_inclusive": {
          "absolute": 80
        },
        "min_inclusive": {
          "above_bottom": -80
        }
      }
    },
    {
      "type": "minecraft:biome"
    }
  ]
}
ChangeVeinSizeExpOre
MC 1.21, 1.21.8, 1.21.5, 1.21.4, 1.20.1, 1.21.1, 1.21.6, 1.21.3, 1.21.7, 1.21.2, 1.21.9, 1.21.10, 1.21.11, 26.1, 26.1.1, 26.1.2, 26.2, 26.3
Release 2026-10-06 Get
ChangeVeinSizeExpOre
MC 1.21, 1.21.8, 1.21.5, 1.21.4, 1.20.1, 1.21.1, 1.21.6, 1.21.3, 1.21.7, 1.21.2, 1.21.9, 1.21.10, 1.21.11, 26.1, 26.1.1, 26.1.2, 26.2
Release 2026-08-18 Get
ChangeVeinSizeExpOre
MC 1.21, 1.21.8, 1.21.5, 1.21.4, 1.20.1, 1.21.1, 1.21.6, 1.21.3, 1.21.7, 1.21.2, 1.21.9, 1.21.10, 1.21.11, 26.1, 26.1.1, 26.1.2
Release 2026-06-09 Get
ChangeVeinSizeExpOre
MC 1.20.1
Release 2026-01-25 Get
ChangeVeinSizeExpOre
MC 1.21.11
Release 2025-12-13 Get
ChangeVeinSizeExpOre
MC 1.21, 1.21.5, 1.21.8, 1.21.9, 1.21.10, 1.21.4, 1.21.3, 1.21.7, 1.21.1, 1.21.6, 1.21.2
Release 2025-10-02 Get
ChangeVeinSizeExpOre
MC 1.21.8, 1.21.7
Release 2025-07-03 Get
ChangeVeinSizeExpOre
MC 1.21.6
Release 2025-07-01 Get
ChangeVeinSizeExpOre
MC 1.21, 1.21.5, 1.21.4, 1.21.3, 1.21.2
Release 2025-05-09 Get

Requirements & install

How to use this data pack in Minecraft
Mods needed
None, works in vanilla
Minecraft
1.21.9 – 26.3
Install folder
saves/<world>/datapacks

How to install data packs

  1. Download the data pack .zip file (do not extract it).
  2. New world: click Data Packs on the world creation screen and drop the .zip in. Existing world: open .minecraft/saves/<world>/datapacks.
  3. Put the .zip into the datapacks folder of the world (servers: world/datapacks).
  4. Run /reload in game (or rejoin the world) and check it with /datapack list.
Browse more: Data Packs for 26.3 All data packs

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