Quote:
Originally Posted by rally
Tile Test results :
Rubbing the pointy lump across the unglazed side (back) of a wall tile, resulted in a very faint dark reddish/brown line that wiped off easily
I am not convinced that test is really all that conclusive, but I am leaning more toward it being a mineral.
It certainly looks more like an iron nodule than any tectite photo I have seen.
Rally
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Take it from a geologist (ex), you don't get much more conclusive than that
