In 2018, the man brought the 22-pound rock to Mona Sirbescu, a geology professor at Central Michigan University.
Her analysis determined that it was a meteorite. It was made of 88.5 percent iron and 11.5 percent nickel. It was also the sixth-largest recorded find in Michigan.
The man obtained the rock in 1988 when he bought a farm in Edmore, located about 30 miles southwest of Mount Pleasant.
He spotted the rock while touring the property and asked the farmer what it was. The farmer told him it was a meteorite and that it was part of the property.
He also said the meteorite had landed in the 1930s. The morning after, the farmer and his father found the crater and dug up the meteorite.
The new owner of the meteorite kept the space rock for decades and was inspired to figure out how much it was worth after hearing stories about Michigan residents finding and selling pieces of meteorite.