Why this rock is probably not a meteorite:

1) No fusion crust.

2) The dark stuff on the large piece is glass, and glass occurs in the smaller pieces, too. Meteorites don't have massive glassy parts attached to crystalline rock. Fusion crusts are glassy, but they are very thin and are located only on the surface.
What is it?

It was found in rural Missouri. Like number 26, it's probably a debris from an old smelter or forge. If sand and limestone are heated to high temperature, glass will form. The piece on the left looks like glass poured onto rock.


Prepared by:

Randy L. Korotev

Department of Earth and Planetary Sciences
Washington University in St. Louis

Please don't contact me about the meteorite you think you’ve found until you read this and this.