The Minecraft Caves & Cliffs update is coming in the summer of 2021, and with it comes a plethora of new mobs, land formations, and a brand-new ore: copper. While we got a new type of ore in the Nether Update, it’s been a while since a new ore type has been introduced into the overworld, the most recent being emerald. Caves & Cliffs will also be the first update to add an ore that changes in appearance over time.
Finding and using copper
It’s important to note that copper will only be a semi-precious ore, rather than a rare tier ore like gold or diamond, so it will not be super difficult to find.
Copper can be crafted into blocks, slabs, and stairs, making it perfect for decorating; but if you want that shiny bronze look forever, you might be out of luck. Once copper ingots are crafted into any shape and are placed, they will naturally oxidize over time.
This will not change any play mechanic or interactive element — the changes over time are purely cosmetic, though copper can also be used to craft a telescope.
The image above details what a building may look like in the middle of the oxidation process. Once enough time has passed, the block will turn entirely into that shade of green, but this process will take several day-night cycles, so don’t expect it to happen overnight.
Design-wise, this would be perfect for rebuilds of something like the Statue of Liberty, perhaps the most iconic oxidized landmark. Or you can create your own design, and maybe in due time, it too will be iconic.