If you try to register an ore for hell, end and overworld it only gets registered for overworld:

Restriction res = new Restriction(new DimensionRestriction(-1, 1));
OreRegistry.registerOre(new RegisterOreMessage(new ItemStack(Blocks.bedrock), new DistributionTriangular(50, 50, 0.1F), res, new ItemStack[0]));
(bedrock for testing)
executing that piece of code results in the tooltip: valid dimensions: Overworld
i tried other dimensions from galacticraft eg.: Mars and it works there but neither in hell nor in end