Spelunker

Spelunker 

This mod requires the Fabric Loader and the Fabric API

Simply adds the spelunker potion from Terraria.

The spelunker effect will highlight all ores in your surroundings. By default, this is a 16 block radius and is fully configurable in the configuration file.
The potion can be brewed by using amethyst dust and a night vision potion. Amethyst dust drops with a 10% chance from amethyst clusters.
It's also possible to find the potion in mineshafts with a 35% chance.