A friend referred him to Mona Sirbescu, a geology faculty member at Central Michigan University's College of Science and Engineering.
"It is heavy it is made of iron and nickel, it is 88.5 percent iron and 11.5 percent nickel", says Sirbescu.
The meteorite weighs over 22 pounds (10 kilograms), which makes it the sixth largest found in MI.
It's a story that began out of this world almost a hundred years ago when a meteorite crashed down to earth near Edmore, Michigan.
Siberscu still wanted a second opinion and sent off a slice of the rock to the Smithsonian Institution. This isn't just any space rock, though.
"It's the most valuable specimen I have ever held in my life, monetarily and scientifically", Sirbescu said in the release.
He asked the then homeowner about it and was told it was a meteorite found on the property in the 1930s. While touring the property, the man spotted the rock propping open a door and asked the farmer what it was. He and his father dug it out the next morning and it was still warm.More news: Microphones picked up comment from Conor McGregor after third round against Khabib
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When the new owner moved after a few years, he took the rock with him and continued to use it as a doorstop.
The buyer ended up leaving the property eventually but took the 10-kilogram rock with him.
This year, the man was inspired by stories of MI residents finding and selling pieces of meteorites. "I wonder how much mine is worth, '" Mazurek said.
But tests are underway at UCLA to see if it contains rare elements that would bump up the value.
The meteorite hasn't sold yet, but the Smithsonian Museum is considering buying it, as well as another collector.
Mazurek says that when he sells the meteorite, he'll donate some of the money to the university.
The Smithsonian and a mineral museum in ME are considering purchasing the meteorite for display, according to CMU.