Evolution Stones
From Pixelmon Wiki
Evolution stones are used to evolve certain Pokémon. They can also be used to make evolution stone armor and evolution stone tools.
Most evolution stones (excluding Moon Stones) can be crafted using shards, which are found in various locations depending on the type of shard. All evolution stones can also be obtained from boss Pokémon and PokéLoot chests.
There are eight different types of evolution stones: