Rock used as doorstop is actually a meteorite worth USD100K

Rodiano Bonacci
Ottobre 10, 2018

But that all changed when she was asked to examine an oddly shaped large rock that a MI man, who didn't want to be named, had had in his possession for the last 30 years.

Mona Sirbescu, a geologist at Central Michigan University said, 'I could tell right away that this was something special.

The man learned about MI people finding and selling the meteorites and began to wonder how much his own rock was worth.

For Sirbescu throughout her career, this has been a regular request, with no exciting outcomes.

"For 18 years, the answer has been categorically "no" - meteor wrongs, not meteorites".

The man has indicated that he will donate "10 percent of the sale value to the university to be used as funding for students in earth and atmospheric sciences".

When Dr Sirbescu examined it under an X-ray fluorescence instrument, she found that the rock was an iron-nickel meteorite with about 88 percent iron and 12 percent nickel, a metal rarely found on Earth.

The farmer said that it had come down onto the property in the '30s - "and it made a heck of a noise when it hit", the new owner recalled him saying, according to CMU's statement.

He fell to the Ground somewhere in the 1930-ies, and came to its owner in 1988 when he bought a farm in Edmore.

When he asked about it, he was told in a matter of fact way by the owner that it was a meteorite. He and his father dug it out the next morning and it was still warm. On the question of what kind of stone it is, the seller said it was a meteorite that is part of ownership, so it may take. While touring the property, the man inquired about this particular rock.

Does this mean you should start digging through your old rock collection for potentially valuable meteorites? A colleague there further analyzed the sample, including with an acid test to reveal the Widmanstätten pattern, a property of most iron-nickel meteorites that can not be faked.

It is reported that though the meteorite has not been sold yet, Smithsonian Museum and another collector are interested in buying it, and pieces of it may also be cut for research purposes.

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