Earth Mantle
by koongun5555
Earth Mantle replaces the bedrock layer of the world with mantle blocks of ultramafic igneous rock, and adds peridotite and related blocks for Forge worlds on 1.20.1.
What it does
Earth Mantle adds three new blocks to the world generator: mantle peridotite, a peridotite half mantle block, and a magma-like peridotite lava block. The mod generates ultramafic igneous rock layers in the same way vanilla layers are built, replacing bedrock. Blocks around a mantle block turn into peridotite as the mantle spreads outward, while the mantle peridotite and half mantle variants keep their form.
The mod works with Create and Tectonic world generation, so its blocks can appear in worlds built with those mods. A Forge build for 1.20.1 is the only target, and the author notes that further changes are planned during development. The environment is client and server, so the server and every player need the mod, and it is released under the MIT License without being open source.
Key features
Mantle block hazard
Stepping on a mantle block damages the player, and holding a mantle item does the same, including for tools, armor and inventory contents.
Peridotite fragments
Breaking peridotite or a peridotite half mantle block drops four peridotite fragments, which can be crafted back into peridotite.
Dropped item removal
Items dropped onto a mantle block are destroyed, and a mantle block that engulfs more than 32 items converts into peridotite.
Block variants
Peridotite comes in several block variants, adding more mantle type blocks to the set for builders and generation.
Compatibility
Latest build for each game version and loader.
Only full game releases are shown. This mod publishes no snapshot builds.
Questions
Does Earth Mantle need any other mod?
Do servers need Earth Mantle installed?
Which Minecraft version does Earth Mantle support?
In the catalog
Earth Mantle is one of 8,515 World generation mods on ModsFinder, and one of 5,058 World generation mods for Forge. 34,764 mods support Minecraft 1.20.1.
Similar mods
What the author says
A simple mod that add mantle and ultramafic igneous rocks blocks to minecraft, including layers generation replacing bedrock. Stepping on Mantle block will deal damage to the player including tools and armors in their inventory. Holding the Mantle item also do the same. Surrounding block around the Mantle will get…
Official listing
- Modrinth page
- modrinth.com/mod/earth-mantle
- Owner
- koongun5555
- Published
- 2026-02-10
- Updated on Modrinth
- 2026-02-10
- Facts verified
- 2026-10-15