Ore_ESP

All ores available for ESP:

1. Diamond Ore (Regular and  Deepslate)
2. Gold ore (Regular, Deepslate, Nether)
3. Emerald Ore (Regular and Deepslate)
4. Iron Ore (Regular and Deepslate)
5. Coal Ore (Regular and Deepslate)
6. Ancient Debris

Colors for Each Ore:

1. Diamonds - Cyan
2. Gold - Gold
3. Emerald - Lime Green
4. Iron - White
5. Coal - Purple
6. Ancient Debris - Cyan

KeyBinds Available:

1. Open GUI Config
2. Clear Cache
3. Toggle ESP

The way this mod works is by scanning a 3x3 chunk area with the player as the center.  See the GUI section for info on the options available. See cache info section if you want to know more about how performance is handled.

GUI Options:

1. Toggle ESP
2. Toggle Scanning
3. Clear Cache
4. Toggle specific ores you want to scan for  

Cache Info:

There is a cache for both the ores and the chunks so that it  is not constantly scanning the chunks around the player. The caches are  set up as an LRU cache which means least recently used entries get removed when the cache is full.   You can manually clear the cache either via GUI or keybind if you need to.

The ore cache has a limit of 1500 entries.

The chunk cache has a limit of 200 entries.

The chunk cache may seem like a lot however in the nether there will not be many hits for things like ancient debris. The same goes for emerald ore as they are relatively scarce.  

This mod is only available for fabric.

Be aware that shaders could affect the mod. An issue I noticed is that after destroying a block that is outlined, an outline may still be present when it should disappear after destruction. Clearing the cache should fix it.