if you are on version 1.7.3 to .1.7.5.1 do not update your worlds to 1.8 or Above
Geo Expansion is a Geology Based mod adding over 50 stone types, over 1000 crafting recipes, and a progression system, Geo Expansion is based off of the Bettergeo mod and based off of Terrafirmacraft mod, and inspired by Vintage Story game, Geo expansion is a geology based mod and a biome mod.
Recommended mods with Geo Expansion, lithosphere mod, Biomes o plenty mod, Create Mod, Sophisticated backpacks mod.
