X-ray is the name of the texture that you can use for ores and for finding dungeons and strongholds. Have you found a dungeon in your Minecraft world? There are a ton of great items and resources in dungeons, so if you are having a hard time locating one, you can consider using the X-ray texture pack. It is true that dungeons do exist in peaceful mode, but the Monster Spawner will not function. Those who are exploring a cavern should be wary of encountering a dungeon, as they are almost always connected to big caverns, and are quite dangerous for unprepared players. Finding one without a chest is possible, though unlikely. They are made of cobblestone and mossy cobblestone that contain a hostile mob spawner and up to two chests. Dungeons are known as small underground rooms in the Overworld that are usually filled with dangerous mobs.
