How to Polish and Etch an Iron-Nickel Meteorite. Muonionalusta

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This is my technique on Polishing and Etching an Iron-Nickel Meteorite.

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I used to polish very hard precision machined ceramic parts for my aerospace customers back in the 70's, 80's and 90's and my father taught me how to do it. He learned how to do this at Bell Labs back in the 50's and 60's. You get a piece of float glass which is a very flat surface and put that under your sanding media. Then, you make figure 8's with the workpiece. This gives you the best "random" material removal action and will not create marks that will show up in the surface later. We lapped/polished with diamond paste right on the glass surface itself as the diamonds adhere to the softer glass material and lap/polish the harder ceramic materials we worked with. You need to change glass plates as you go up through the diamond paste grits and wash the part well to avoid contamination. Being metal, I doubt you need anything as hard as diamond paste and your aluminum oxide paper should do a good job. I always enjoyed watching Meteorite Men and I think it is great you have a space rock piece that they found. Very nice Widmanstätten pattern you got there. (I have trouble pronouncing that, ha ha.) That came out really well.

OverlandOne

This will be an excellent display piece . I love the idea of the raw meteorite surface with the polished inner crystals showing. So cool

TrailBlazer

That's why I love youtube and it's creators. I can't believe I found your video about how to take care of my muonionalusta. Thanks!

flaviovianna

I think it so coop that you did it by had. wow that in its self is rewarding. Let alone having something in front of you that is out of this world literally

Gold-dx

Wet sanding will help prolong the sandpaper, prevents clogging and also keeps the dust down.

weirdscience

Nice job, I'll post mine after following your instructions!

rastonesmineralsmudfossils

muy bueno 👍👍.saludos desde Argentina.🇦🇷..👏👏

emiliocuello

Fantastic video, extremely informative and extremely interesting 10/10

freshimpactco.

Meteorites are usually composed of an iorn-nickel alloy that is damn near impervious to rust shouldn't need any epoxy but overall very informative also for anyone trying this at home wear saftey equipment also phosphoric acid often sold as ph up for gardening and aquariums works just as well according to other online guides.

complainingnerds

You should try a lapidary cabbing machine... Can get it from raw to over 50000grit in a couple of mins

idontknowmyfirstname

Very cool Don, I would leave one side with the mirror polish, it looks very cool, the bricks and motor of our solar system, I really hope one day to find one, nice information

linktothepastmetaldetectin

Neat stuff Don! Well done. You might save a bit of elbow grease by going with wet sanding after 400 grit. Just soak each sanding sheet in water. Might be a tad messy, but the results will be quicker.

MerrylBustin

Hi I am Roger from Namibia, I am so excited to see how You Sir edge a meteorite...Could You Pls tell with what type of asset do you edge meteorite😊

RogerCloete-un

Love your video I learned a lot from it thank you for posting it I have one question can you use muriatic acid and peroxide to etch a meteorite

jamestester