According to CNN, a man says he inherited the rock when he bough a MI farm in 1988.
Upon receiving the meteorite, Sirbescu evaluated it and discovered it was an iron-nickel meteorite, composed of 8 to 8.5 percent iron and 11.5 percent nickel. "This is it - I am holding this space rock that tells us so much about the origins of the universe".
The 22-plus-pound meteorite turned out to be the sixth-largest in MI and was valued at $100,000. "It's the most valuable specimen I have ever held in my life, monetarily and scientifically".
Sirbescu sent a small sample to the Smithsonian Institution in Washington DC for further analysis where it was estimated the meteorite could be worth around $100,000.
The farmer who sold Mazurek the land in the town of Edmore in 1988 told him Mazurek could have it - that the meteorite was part of the property, according to the release.
The unidentified man told the professor the meteorite was passed on to him in 1988, when he bought a farm in Edmore, Michigan. In the morning, the farmer and his father found the crater and dug out the still-warm meteorite.
The buyer ended up leaving the property eventually but took the 10-kilogram rock with him.
For the past thirty years, he has used it as a doorstop and sent it off to school with his children for show-and-tell.
In January, however, the owner learned that people were selling meteorites for money, and he wanted to know if the one he had was worth anything.
"A piece of the early solar system literally fell into our hands", Dr Sirbescu said in a video made by the university to promote its discovery.
This rock might be worth as much as The Rock.
Now, the space rock, dubbed Edmore meteorite, is waiting to find a permanent home.
"What typically happens with these at this point is that meteorites can either be sold and shown in a museum or sold to collectors and sellers looking to make a profit", Sirbescu said in a statement.
The Smithsonian Institution and a museum in ME are interested in purchasing the meteorite to put on display. Decades later, he chose to get the rock checked out after reading stories about a fireball of a meteorite that broke up over the Midwest in January.