Emeralds
With the Minecraft 1.18 update, emeralds have become slightly more common, but players will still have to work hard to find any of these ores. Between levels Y 256 and -16, they can be discovered. Emeralds are mainly used in village trade.
Although Ancient Debris is not listed as a mineral, it is still classified as such. In Minecraft 1.18, this is the rarest ore. The Nether has not been changed in the most recent update, making Ancient Debris a rare block in the game. Produces netherite, the most powerful resource in the game. In the Nether, finding these blocks is incredibly difficult.
Effective method of mining rare minerals in Minecraft
Strip mining has proven to be one of the most efficient methods for mining diamonds. In this method, the player mines in a straight line at a low Y. Then, after a while, the player returns to the starting point and mines in the same direction, leaving a gap of two blocks from the last mine path.
Nether Gold Ore
Rarity: Very common Renewable: No Stackable: Yes (64) Hardness: 3
Nether Gold Ore is a more common version of the original Gold Ore that players can find in the Nether Heights. Drops 2.6 gold nuggets after the mining process, but this ore yields more gold if you break it with Silk Touch (a tool enchantment), resulting in gold bars.
Copper ore
Copper is a new type of ore in Minecraft 1.17 update and has some uses like crafting copper blocks, lightning rod, scope or a special wax function interactive with honeycomb .
Copper has two variants just like coal. But this time, you can see some cyan (or aqua) and orange dots in the ore blocks.