Ruby Ore Fix Update is a release file of the Minecraft mod Useful Blocks & Items Mod, made for Minecraft 1.12.2. It was published on November 8, 2019 and is 1.9 MB in size. For the full description, screenshots and every other version, visit the Useful Blocks & Items Mod mod page.
How to install: Put the .jar into the mods folder (.minecraft/mods) and start Minecraft with the matching mod loader profile.