this is caesium : a mod that adds a material called pebber which is used to make tools, INVISIBLE armor and even some blocks. you obtain it mixing raw iron and raw copper togheter. you can make eye drops with it too! just use 2 smelted pebber on top and 2 glass bottles on the bottom. it's that easy. try it for yourself! IT DOES NOT ADD ANYTHING ELSE, THE DESCRIPTION IS COMPLETE
Quick facts
- Edition: Minecraft Java
- File type: .jar
- Minecraft version listed: 1.21.8
- 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 — How to install Minecraft Java mods & modpacks walks through it step by step.
Verified by MCModsHub
- Ships as caesium-1.0.0.jar — drop this file into the mods folder
- Download size: 48 KB
- Download link checked 23 Aug 2026 — working
These come from our own check of the pack file, not from the source page.