Larger Ore Veins: Classic
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This simple datapack changes mining to make it more rewarding when you find coal, iron, copper, or gold. The size of the ore blobs has been greatly increased, but have also been made less frequent to balance it out.
Coal ore blobs have a chance of generating coal blocks
Iron ore blobs have a chance of generating raw iron blocks
Copper ore blobs have a chance of generating raw gold blocks
Gold ore blobs have a chance of generating raw gold blocks
Some ore deposits are so concentrated that you can find small blobs of raw iron or raw gold
Notice
This is a world generation datapack. World generation data packs work best when added to your world during the world creation phase. You can still add them to your world after generating it, you just need to generate new chunks to see the effects.
Modifying this pack
Make sure you download the data pack version of this project.
To modify the size of the ores, go to data/minecraft/worldgen/configured_feature and change the size value in the desired JSON files (The maximum size is 64).
To modify the rarity of the ores, go to data/minecraft/worldgen/placed_feature and edit the count values in the desired JSON files.
(Note, some files currently use rarity_filter instead of count, this will be changed in an upcoming update)
- Edition: Minecraft Java
- File type: .jar
- Minecraft versions listed: 1.19, 1.19.1, 1.19.2
- How to install: Install the matching mod loader (Forge, Fabric or NeoForge) for your Minecraft version. → Download the .jar. → Put it in the .minecraft/mods folder and launch that loader profile.
- Where to get it: Opens on Modrinth — not every file is mirrored on our own servers.
Install steps are the general flow for this file type — see the MC Java Mods guides for the full walkthrough.
- Downloads as large-ore-veins-v1.0.8.zip
- Download size: 9 KB
- Download link checked 28 Aug 2026 — working
These come from our own check of the pack file, not from the source page.