Okay, so I like mods, a lot. I've installed 3 relevant ones at the moment, galacticraft, mekanism, and the archimedes ships mod.

So after weeks of effort I managed to construct an archimedes ship in the asteroid belt that maintains life support when disassembled, and even has a working mekanism teleporter back to my base on earth.

The problem is that I accidentally dismounted the ship when piloting it (meaning the teleporter is shut down) and I died when I landed next to a creeper. I have no idea what the last coordinates were and I desperately need a mod that lets you hunt down a single type of block (like the glass I used in the construction) to let me know where the thing is in the asteroid dimension.

If anyone knows of such a mod, please let me know, I've been searching for it in creative for two days now and I can't find it!