University Geology Professor Mona Sirbescu first identified the piece as more than just a rock, but she sent two small slices of the rock to the Smithsonian for confirmation.
So in February, he took the meteorite to Central Michigan University to have a scientist look at it.
"Within seconds, I knew it was a real one", Sirbescu said when she saw the meteorite.
What makes the meteorite found in MI unique is that it is 88% iron and 12% nickel. This is the rags-to-riches story of a rock from outer space.
Weighing 22 pounds, it's the sixth-largest recorded find in MI - and potentially worth $100,000, according to CMU.
'It's the most valuable specimen I have ever held in my life, monetarily and scientifically, ' Dr Sirbescu said.
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 man had the meteorite with him since 1988 when he bought a farm in Edmore.
Neither man figured the meteorite was worth much money, so it sat there, sometimes holding a door open once in a while.
The farmer told the man that as it was part of the property, he could have it. He and his father dug it out the next morning and it was still warm.
The man even let his kids take the rock to school for show-and-tell throughout the years.
The meteor that blazed through MI this January changed his life's trajectory as he read accounts of people finding and selling small pieces of the meteorites.
"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. "I wonder what mine is worth", Mazurek said in the release.
Now, the space rock, dubbed Edmore meteorite, is waiting to find a permanent home. The Smithsonian is considering purchasing the meteorite and adding it to the museum's collection.
In January, the man chose to learn once and for all about the value of the doorstep.
The meteorite's anonymous owner is promising to donate 10% of sale proceeds to the university.