Simple Ore Scanner Mod has been built to provide players a simple item called “simple ore scanner”. This scanner looks like a wand. Although it is simple, it’s actually functional since it helps you scan the nearby area for ores. Just simply combine 3 sticks and 2 bones, you already get ore scanner.
By default, this ore scanner has search range of 9x9x4 directly under the player. Well, your finding ore process is easier now. In particular, this mod also allows you to change in config the area to scan. This thing is meant to be used with mods changing ore spawning (CustomOreGen). Now your finding ore process is easier and easier.
For Minecraft 1.7.10
For Minecraft 1.10.2