Fortune is an enchantment in Minecraft that can be applied to tools and increases the amount and/or the chances of a block dropping a specific item. It does not increase the experience received. For example, with the Fortune enchantment, you are more likely to get flint from gravel or an apple from a tree.
Fortune Enchantment Details
You can add the Fortune enchantment to any pickaxe, shovel or axe using a table, anvil or command. Then use the enchantment tool to mine and see how many blocks are dropped!
The maximum level for the Fortune enchantment is level 3. This means that you can enchant an item with up to Fortune III. The higher the level, the more powerful the enchantment.
Incompatibility of the Fortune enchantment
Silk Touch and Fortune are mutually exclusive. If commands are used to apply both Silk Touch and Fortune to an item, the Silk Touch enchantment takes precedence over the Fortune enchantment for blocks affected by both enchantments.