Minerals and Fossils
by ERR0RW0LF
Minerals and Fossils, a Fabric decoration mod for 1.21.4, adds gem and fossil finds that players reach by breaking stone and sandstone with a hammer.
What it does
Players craft a hammer and use it to search blocks for items. Breaking stone with the hammer can turn up stone finds, breaking sandstone can turn up sand finds, and holding a stone find in the off hand while swinging the hammer in the main hand can produce amethyst finds. Mining iron ore with the hammer can yield almandine. The hammer itself is built from a hammer head, which is a crafting component.
Amethyst gets its own set of items and blocks, starting with uncut amethyst that is cut into a usable form. Cut amethyst blocks and amethyst dust are part of the same chain. A gemstone workstation turns uncut gemstones into cut versions, so the workstation sits at the centre of the gem-processing step.
The mod requires Fabric API and runs on Fabric for 1.21.4 only. It is open source under the MIT License, and its source code and issue tracker are public. Latest file is 1.0.2 for 1.21.4, released 2025-08-20; the first release was 2025-06-30. Both client and server need the mod. The author lists work in progress on some parts of the content.
Key features
Hammer-based finds
A crafted hammer opens new find items when used on stone, sandstone and iron ore.
Amethyst finds
Amethyst items are obtained from stone finds when the hammer is used with the stone held in the off hand.
Cut amethyst blocks
Uncut amethyst can be cut into amethyst blocks, adding building materials built from the gem.
Gemstone workstation
A workstation converts uncut gemstones into cut versions for later use.
Gallery
Compatibility
Latest build for each game version and loader.
Only full game releases are shown. This mod publishes no snapshot builds.
Requirements
Dependencies declared by the latest file for each loader.
Required 1
How it compares
Hammer Mod is a Fabric mod for 1.21 – 1.21.3 with an all rights reserved license, and it is not open source. Better Hammers is open source under the MIT License and covers 1.20.1 – 1.21.1 on Fabric. Hammer Editor is client-side only, for 1.21.1 on Fabric, and is not open source.
| Mod | Loaders | Game versions | Environment | Updated |
|---|---|---|---|---|
| Minerals and Fossils | Fabric | 1.21.4 | Client and server | 2025-08-20 |
| Hammer Mod | Fabric | 1.21 – 1.21.3 | Client and server | 2025-11-03 |
| Better Hammers | Fabric | 1.20.1 – 1.21.1 | Client and server | 2025-09-02 |
| Hammer Editor | Fabric | 1.21.1 | Client-side only | 2026-04-11 |
Questions
Does Minerals and Fossils need Fabric API?
Does the server need the mod?
Which game version does the mod support?
Are all hammer finds finished?
In the catalog
Minerals and Fossils is one of 12,078 Decoration mods on ModsFinder, and one of 6,982 Decoration mods for Fabric. 17,979 mods support Minecraft 1.21.4.
More from ERR0RW0LF
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What the author says
- Stone Find can be found by breaking Stone with Hammer - Sand Find can be found by breaking Sandstone with Hammer - Amethyst Find can be found by holding stone Find in off hand and in the main hand Hammer and then right clicking - Hammer Head is used for crafting Hammer - Adds new "find" items these can be opend…
Official listing
- Modrinth page
- modrinth.com/mod/minerals-and-fossils
- Owner
- ERR0RW0LF
- Published
- 2025-06-30
- Updated on Modrinth
- 2025-08-20
- Facts verified
- 2026-10-15