MaterialDetector Mod 1.11, 1.10.2, 1.9.4 is a a material detector. This mod features are:

Show the surrounding material at your level/height map.
Indicate (far or not far) a given material with a direction to dig for.

The detector shows also the other materials that are in the list (see FAQ for more information) and not only the selected material.
Only the blocks that are 2 blocks deep or 2 blocks above are shown.
This way, while searching for iron, you can easily found coal.
The water and lava is also displayed using this mechanism in order to avoid to dig into lava directly
Warning: As it can be used to dig very easily some rare materials, it can be consider as a CHEAT.

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