A Specimen what Fall'd from the Sky??

Derk

Jr. Member
Sep 30, 2018
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Primary Interest:
All Treasure Hunting
This is a stone I picked up while arrowhead hunting in Howard County Indiana. I originally thought it was some kind of stone tool because of the many percussion flaked looking spots and the overall stone axe-like shape. After I cleaned it and got a better look at it, I could see most of the surface covered in melt type features, particularly at what I call the "front" edge, where the melting is the heaviest. And looking closer in the "percussion flake" marks, they seem to be affected by varying degrees of melt activity as well.

I started to grind a flat portion on what I call the "bottom" side measuring roughly 2"x 3" And While it's mostly very dark throughout that window there are some sparsely embedded tiny metal spherules, and a couple less opaque inclusions that remind me of Olivine somewhat, with the majority of the sanded portion, under certain lighting angles, looks to consist of dark brecciated clasts in a similarly dark matrix material. They are difficult to see in most lighting angles. Maybe I could do a lot more sanding to get a bit of a polish and they might be more obvious.

It does hold a magnet, no problem. And apart from the sanded portion, the rest has only been scrubbed by a toothbrush under the tap in my kitchen sink.
The pictures aren't in any particular order, and I am working on a set of microscopic images currently that I can post here in virtually no time at all, if anyone thinks they might speak to whether or not this be a bonified meteorite specimen...

Thank you to all who take a look. And please let me know what you think!
Top:
20240910_101502.jpg

Bottom:
20240910_101853.jpg

Front(heaviest melt) end:
20240910_101155.jpg

20240910_101407.jpg

Sanded window area:
20240910_101038.jpg

20240910_101142.jpg

20240910_101053.jpg

Various surface views:
20240910_101433.jpg

20240910_101308.jpg

20240910_101223.jpg

20240910_101343.jpg

Weighed on scale:
20240910_103256.jpg
 

Looks like Aphanitic Basalt to me (Terrestrial). Many basalts exhibit attraction to a magnet and may also exhibit residual melt features. Melt features in meteorites are usually orientated from atmospheric passage as 'flow-lines'.
 

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Looks like Aphanitic Basalt to me (Terrestrial). Many basalts exhibit attraction to a magnet and may also exhibit residual melt features. Melt features in meteorites are usually orientated from atmospheric passage as 'flow-lines'.
I gotta say, looks like you nailed it here. Including the image was incredibly helpful. Thanks a meteoric tonne, Mr. Red-Coat!
!
 

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