Nether Geodes

Adds Amethyst Geodes with Black Calcite to the Nether

520 Downloads

neoforgeadventureworldgen

Rent Server with this Mod

Screenshots

About this Mod

Nether Geodes

Adds rarer Amethyst Geodes to the Nether, containing new Black Calcite, a great building block. These geodes have the same design as the voerworld geodes with the calcite replaced with black calcite.
Great for packs without normal overworld generation like skyblocks.

Nether Geode

Black Calcite

Known Issues

Currently geodes are blocked from spawning in Basalt Deltas, I'm looking into a bug that casues basalt collumns to generate through the geodes, when its fixed I'll uodate to allow the geodes in basalt deltas

Available Versions

Nether Geodes 1.0.1release

MC 1.21.1neoforge

November 9, 2025

How to Install Nether Geodes on Your Server

Order Server

Order a Minecraft Java server with at least 4 GB RAM (6 GB recommended).

Set neoforge Loader

In the panel under "Egg", select the neoforge loader and matching Minecraft version (1.21.1).

Install Mod

Open the mod browser in the dashboard and search for "Nether Geodes". Click "Install" – done! Alternatively, upload the .jar via SFTP to the /mods folder.

Compatibility

Mod Loaders

neoforge

Minecraft Versions

1.21.1

Server-side

✓ Required

Recommended RAM

6 GB(min. 4 GB)

Frequently Asked Questions

Nether Geodes server crashes on startup – what to do?

Most common cause: wrong neoforge version or insufficient RAM. Check the server log (latest.log) for "OutOfMemoryError" or "Mixin" errors. With Mado Hosting: ensure at least 4 GB RAM is allocated and the loader matches the mod version (1.21.1). You can switch loaders with one click in the panel.

Is Nether Geodes compatible with neoforge?

Nether Geodes officially supports neoforge for Minecraft 1.21.1. The Mado dashboard automatically detects incompatible loader combinations.

Server lagging with Nether Geodes – how to optimize performance?

Recommended RAM: 6 GB (per 5 players). Use /spark profiler to check if Nether Geodes consumes the most tick time. Common fixes: reduce server view-distance to 8-10, install "performant" or "starlight" as supplementary mods on Forge. With Mado Hosting, your server runs on NVMe SSDs with dedicated CPU cores for minimal latency.