nalcomis Posted January 7, 2018 Share Posted January 7, 2018 I found this out in San Bernardino burried in hard clay in a wash. It attracts to magnets and has the correct external features ( I think) to be considered a candidate. The last picture is of the window I sanded off. It polishes up like metal. I do have another verified meteorite to compare it to and this one seems very similar in density. What do you think? Link to comment Share on other sites More sharing options...
fredmason Posted January 8, 2018 Share Posted January 8, 2018 probably ironstone of some sort...the surface is not what I would expect...but, I am not an expert... fred 2 Link to comment Share on other sites More sharing options...
Lunk Posted January 8, 2018 Share Posted January 8, 2018 I agree with Fred; the color and surface features are typical of magnetite, which has a density similar to that of meteorites and a metallic luster on a fresh surface. A simple test would be to rub the stone on a piece of unglazed porcelain (streak test). Magnetite will leave a dark grey to black streak. 2 Link to comment Share on other sites More sharing options...
nalcomis Posted January 8, 2018 Author Share Posted January 8, 2018 It does leave a black streak....Thanks! But if it was magnetite wouldn't it be magnetic itself? Link to comment Share on other sites More sharing options...
Lunk Posted January 8, 2018 Share Posted January 8, 2018 3 hours ago, nalcomis said: It does leave a black streak....Thanks! But if it was magnetite wouldn't it be magnetic itself? Although there is a type of magnetite called lodestone that is naturally magnetized, most magnetite is not. However, it can be magnetized with a strong magnet such as a rare earth super magnet. 3 Link to comment Share on other sites More sharing options...
fredmason Posted January 8, 2018 Share Posted January 8, 2018 https://geology.com/minerals/magnetite.shtml 1 Link to comment Share on other sites More sharing options...
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