The Simple Xray [1.8] [1.7.10]
Mod will add X-ray vision, with which you can quickly find the right ore or chest, to turn it on press the "X" button.
1. Download mod
2. Run the file and click install.
1. Download the mod and use 7zip to unpack it
2. Using 7zip open the file
.minecraft\versions\1.7.4\1.7.4.jar and copy the
mod files there, then delete the META-INF folder