Jazzium is a new rare ore found deep in the Nether. It can be mined with a diamond pickaxe and the ingots need to be combined with blaze powder to make flamed jazzium. The flamed jazzium can then be made into strong armor and tools!
The tools are all made with the same recipes as normal tools except you need blaze rods instead of sticks.
And the armor is also made with the same recipes. The Jazzium will give you full armor health and the armor itself is slightly stronger than diamond armor!