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No, it is iron slag.

Take a look at your rock(s). If it glistens like a crystal structure (ie: quartz) at any point in the rock it can’t be a meteorite. If it has layers, it can’t be a meteorite, it’s sedimentary. If it has small gas bubbles in it, it can’t be a meteorite. It’s basalt. If it is moderately magnetic it is not a meteorite. If there is a thick crust on it, it can’t be a meteorite. File off a corner or cut it. It won’t diminish it’s value. If there is all bright silvery metal it can’t be a meteorite. If it is all grey metal it can’t be a meteorite. If there is black crust as thin as a fingernail, and crazing on the outside of the rock, it might be a meteorite. If there are small silver specks visible in the filed off section, it might be meteorite.

There are billions of magnetic rocks in the US, none of which are meteorites. Anyone can find magnetic earth stones nearly everywhere. Just take a strong magnet and drop into sand and you will see what I mean. Check our O Richard Norton’s, “Rocks from Space” or visit the ASU Meteorite Center or similar center.

billpeters

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Bill......I just asked UncleRon this on another thread. Doing some research the other day about gas bubbles in meteors I did find a page that showed a moon rock cut open and it did have gas bubbles in it, and I believe on it. Is this true? Can moon rocks have gas bubbles? 

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DRP,

Yes, there are categorized exceptions to nearly everything I have written above, but they are not the norm.  The rock above is terrestrial. However, that marble may be out of this world.

Cheers!

billpeters

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