But that all changed when she was asked to examine an oddly shaped large rock that a MI man, who didn't want to be named, had had in his possession for the last 30 years.
"It's the most valuable specimen I have ever held in my life, monetarily and scientifically", she said.
The man, who wanted to remain anonymous, said he was aware of the rock's provenance from the time he bought the house in Edmore in 1988.
Scientists studied this space rock at Central Michigan University.
A United States farmer and his son saw a shooting star come crashing onto their property one night in the 1930s. The farmer then told him that he and his father saw it fall at night during the 1930s, adding that since the meteorite was part of the property, the man could have it.
This 22-pound doorstop is also a meteorite valued at about $100,000.
Rock used as doorstop revealed to be meteorite worth $100K
A rock that was used as a doorstop on a MI farm for decades has been identified as a meteorite worth $100,000. So in February, he took the meteorite to Central Michigan University to have a scientist look at it.
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An examination found that the rock is an iron-nickel meteorite composed of mostly iron with 12 percent nickel.
An additional sample was sent to John Wasson, professor emeritus in the Earth, Planetary and Space Sciences department at the University of California, Los Angeles, who will conduct a neutron activation analysis to determine the full chemical composition of the meteorite and potentially reveal rare elements that could increase its value.
The man told Sirbescu that he kept the rock for the next 30 years, even after moving away from the farm.
The man reportedly hasn't figured out exactly where the meteorite will end up, but a number of institutions are apparently considering purchasing it from him for display.
Regardless of how much that is, Sirbescu feels that she, CMU and her students already have benefited.
Then, "I said, wait a minute".
A mineral museum in ME also was considering buying it, and the owner herself - a collector - said she might purchase it.
As CMU notes, the man has pledged to donate 10% of the sale price to the university as a token of gratitude for helping him identify it.