By downloading this special mod you can add a new ore, the one and only the mighty Ruby! You also get a new dimension called the ruby dimension. You can enter the dimension by building a portal of cyan glazed terracotta and lit it up by using a special lighter crafted with 8 Redstone blocks surrounding a flint and steel. In this dimension only ruby can generate (cannot generate in the overworld, nether and the End).
By using Ruby can craft armor, sword and other tools just like other armor in the game. The armor, weapons and the tools are more powerful than other armor in the game thus making the most powerful armor and tools of the game.