Even though Dr. Sirbescu knew exactly what it was, it had to be sent to the Smithsonian Museum for verification, it wasn't until Thursday word came back it definitively is a meteorite, the 6th largest ever found in MI.
The meteorite weights 22.5 pounds and fell from the sky in 1930's. He says the farmer who sold him the property told him it landed in his backyard in the 1930s.
The man told Sirbescu that he kept the rock for the next 30 years, even after moving away from the farm. The space rock continued to perform that job for decades, only recently being identified as something very unique and valuable. Mona Sirbescu, a geology professor from the school, just confirmed that the doorstop is, in fact, a meteorite.
An examination found that the rock is an iron-nickel meteorite composed of mostly iron with 12 percent nickel.
When the new owner moved after a few years, he took the rock with him and continued to use it as a doorstop.
Siberscu still wanted a second opinion and sent off a slice of the rock to the Smithsonian Institution.
The Smithsonian Institution and a museum in ME are interested in purchasing the meteorite to put on display.
"It was in the barn, one of the outside sheds, just laying on a shelf", David Mazurek said.
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. 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. "I'm done using it for a doorstop", he said, "let's get a buyer".
Mazurek said that when he sells the meteorite, he'll donate some of the money to the university. If a sale goes through, the man has agreed to give 10% of the sale value to the university for the study of earth and atmospheric sciences.