
Lavacastling
Lavacast good looking bases! Tweaks cobble generators and adds a vanilla friendly chisel mechanic for pickaxes.
⬇ Download on ModrinthDoesn't lavacasting seem like a cool mechanic? Pour water over lava in a certain way, and you can easily make a megabase! If only it didn't generate ugly cobblestone...
What this mod does
- Changes lavacasting/cobblestone generators to instead generate stone and gradually blend into deepslate below y=0.
- Adds a vanilla friendly right click function to pickaxes which "chisels" stone by cycling through a list of blocks. (now instead of accidentally stripping logs, you can accidentally chisel stone!)
Both the cobblestone generator and chiseling are fully configurable in the mod's config file (.minecraft/config/lavacastling.json). For multiplayer, this mod is only needed server-side.

By default, lavacasting generates stone above y=8 and blends into deepslate at y=0

Default blocks that chiseling cycles through (stone, blackstone, deepslate variants)
The default config file.
{
"gen_blocks": [
{
"mode": "blend",
"id": "minecraft:deepslate",
"id2": "minecraft:stone",
"minY": 0,
"maxY": 8
},
{
"mode": "solid",
"id": "minecraft:stone",
"minY": 8,
"maxY": 1000
},
{
"id": "minecraft:deepslate",
"minY": -1000,
"maxY": 0
}
],
"chisel_blocks": [
["minecraft:stone","minecraft:stone_bricks","minecraft:chiseled_stone_bricks"],
["minecraft:blackstone","minecraft:polished_blackstone","minecraft:polished_blackstone_bricks","minecraft:chiseled_polished_blackstone"],
["minecraft:deepslate","minecraft:polished_deepslate","minecraft:deepslate_bricks","minecraft:deepslate_tiles","minecraft:chiseled_deepslate"]
]
}
Technical stuff
- Stone and basalt generators are unchanged, though they may still conflict with other stone generator mods due to being in the same method.
- Edition: Minecraft Java
- File type: .jar
- Minecraft version listed: 1.21.5
- 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.
- Ships as lavacastling-0.3.1.jar — drop this file into the mods folder
- Download size: 23 KB
- Download link checked 21 Aug 2026 — working
These come from our own check of the pack file, not from the source page.