Overview

Rare Rich Veins is a Minecraft Java Edition 26.2 Fabric mod that adds rare, naturally generated large ore deposits to newly generated chunks.

Normal vanilla ore generation remains unchanged. Rich veins generate separately and are designed to feel like rare discoveries instead of an unlimited source of materials.

Rich veins generate in irregular, branching shapes and support both normal stone and deepslate ore variants.

Rich Veins

Ore	Chance per Eligible Chunk	Vein Size
🪨 Coal	3%	25–70 blocks
🟠 Copper	2.5%	30–80 blocks
⚙️ Iron	2%	20–50 blocks
🔴 Redstone	1.5%	20–45 blocks
🥇 Gold	1%	15–35 blocks
🔵 Lapis	1%	15–30 blocks
💎 Diamond	0.25%	12–24 blocks
💚 Emerald	0.15%	8–16 blocks

Rich veins only generate in newly explored chunks. Existing chunks will not be changed.

Normal generation always uses the configured percentages. Testing commands temporarily force a 100% chance so each ore can be tested easily.

Commands & Configuration

Commands

/richveins info

Displays information about the mod, enabled ores, and current configuration.

/richveins reload

Reloads supported configuration values without restarting the game or server.

/richveins test <ore>

Forces a rich vein of the selected ore to generate for testing.

Supported ore names:

• coal
• iron
• copper
• gold
• redstone
• lapis
• diamond
• emerald

After a test vein generates, its coordinates appear in yellow in chat. Clicking the coordinates automatically fills this command into the chat box:

/tp @s x y z

This makes it easy for administrators to teleport directly to the generated vein.

Configuration

The server configuration allows you to:

• Enable or disable individual ores
• Change generation chances
• Change minimum and maximum vein sizes
• Adjust generation heights
• Configure allowed dimensions
• Control cave exposure
• Adjust valuable-vein spacing
• Enable debug logging
• Disable the entire mod

Requirements

• Minecraft Java Edition 26.2
• Fabric Loader
• Fabric API 0.155.2+26.2 or newer
• Java 25

Rare Rich Veins supports both singleplayer worlds and dedicated Fabric servers.