Welcome to Ultima Mod, it adds the ruby ore (More for future)
Ruby, Block of Ruby, Ruby Sword, Ruby Pickaxe, Ruby Axe, Ruby Helmet, Ruby Chestplate, etc.
There is also a Notch Ruby Sword
You put 8 Ruby Blocks around a Ruby sword, It's OP.
Requires "Recommended" Installation of Forge 1.12.2
(Changelog) (BECAUSE the one under here DOESN'T Work)
0.2.0 Alpha (1.0.0 Public Alpha) - More Armor, More tools, also, the release of this mod.