
Philosopher's Stone
The philosopher's stone is a legendary alchemical substance capable of turning base metals such as copper or iron into gold.
Screenshots






About this Mod
Philosopher's stone (Fabric and NeoForge)
The philosopher's stone is a legendary alchemical substance capable of turning base metals such as copper or iron into gold. It is also called the elixir of life, useful for rejuvenation and for achieving immortality. For many centuries, it was the most sought-after goal in alchemy.
In Minecraft, after years of research, I discovered its secret recipe:

The potion in the center is the Potion of Healing. It is the only potion that works.
Legends always have a gist of truth, but they rarely tell the whole truth, so I tested the capabilities of the newly discovered philosopher's stone, and this is what I found:
- It can only be found, and craftable, in worlds where this mod is installed,
- Its recipes are kept in secret, and do not appear in REI or in any recipe book,
- I was unable to test if it helps to achieve immortality, because in Minecraft every player is immortal,
- However, it does not make the player immortal in hardcore mode,
- It has some healing property, if it is kept in the player's inventory,
- When used on certain animals, it makes them juvenile,
- It does not work on horses, villagers and hostile mobs,
- It does turn copper into gold

- And it does turn iron into gold

- But its most magical property is that it turns coal into diamond

- There might be other, similar recipes, I am not sure, I have found them all,
- And finally, quite sadly, it has a limited use, because it gets damaged after every use.
License
Standard MIT license. Feel free to learn from it and incorporate it in your own projects.
Source code
Available on GitLab or on GitHub.
For developers
Quite often, when I start learning programming on a new platform, I find even the simplest examples too complicated.
Tutorials, written by experts, with years of experience programming on that platform, sometimes forget how difficult those first step are.
This is why I decided to make my first Minecraft mods publicly available, and document the source code meticulously.
See also
My other mods on Modrinth and on CurseForge.
Available Versions
How to Install Philosopher's Stone on Your Server
Order Server
Order a Minecraft Java server with at least 3 GB RAM (4 GB recommended).
Set fabric Loader
In the panel under "Egg", select the fabric loader and matching Minecraft version (1.21.11).
Install Mod
Open the mod browser in the dashboard and search for "Philosopher's Stone". Click "Install" – done! Alternatively, upload the .jar via SFTP to the /mods folder.
Compatibility
Mod Loaders
Minecraft Versions
1.21.11, 1.21.10, 1.21.9 (+14 more)
Server-side
✓ RequiredRecommended RAM
4 GB(min. 3 GB)Frequently Asked Questions
Philosopher's Stone server crashes on startup – what to do?
Most common cause: wrong fabric version or insufficient RAM. Check the server log (latest.log) for "OutOfMemoryError" or "Mixin" errors. With Mado Hosting: ensure at least 3 GB RAM is allocated and the loader matches the mod version (1.21.11). You can switch loaders with one click in the panel.
Is Philosopher's Stone compatible with fabric and neoforge?
Philosopher's Stone officially supports fabric, neoforge for Minecraft 1.21.11, 1.21.10, 1.21.9. The Mado dashboard automatically detects incompatible loader combinations.
Server lagging with Philosopher's Stone – how to optimize performance?
Recommended RAM: 4 GB (per 8 players). Use /spark profiler to check if Philosopher's Stone 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.
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