I found some strange trench generation. It had floating ores and gravel. Also, the world was generated in 18w07c, so that might have to do something with it.
Seed : 3854556177424684123
Coordinates : "-105 37 597"
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Please always provide the seed and coordinates...

Okay, I'm adding it right now.

What are the exact coordinates of the floating iron ore?

Well, I couldn't find the iron ore again. But I did find some even stranger generation.
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The rest of your ticket is MC-125033. If you find the iron ore again, or still have the world with it, please do let us know.