Baryte is a light blue ore that spawns at 1000m to 2000m below. It is fairly common while mining downwards. Baryte can be found both in caves and on its own, however, it is a little more common in caves around 1100m. It is a very fast ore to mine like lower level ores such as sapphire and ruby. At Legend rank or lower, it is a good idea to mine this for the 5000 XP.
Baryte is used to upgrade items in your base, mainly your Research & Development. It is also used for mining operation on levels 11-14. Many Legend - Wizard ranks look for and need Baryte. Baryte is used for upgrading mining operations and other parts of your base.