This Add-On's name "Alper's Copper Features". This add-on currently contains 13 new items. The names of these items are copper helmet, copper chestplate, copper leggings, copper boots, copper nugget, copper sulfate, copper sulfate torch and copper tools(sword, axe, pickaxe, shovel, hoe).
Select version for changelog:
Changelog
Added Copper Sulfate Lantern
Changed Copper Armors 2D and 3D texture
On a different note, a viewer of mine asked me to ask you to fix a few things about this addon so I will repeat what he said:
1. Smelt armor and tools to nugget
2. Reduce protection bars of armor
3. Fix the torch, it looks like the unknown block and is not compatible with 1.19