A Michigan Doorstop Was Authenticated as a $100,000 Rock From Space

A 10.22 kg rock that sat on a Michigan farm for decades was confirmed in 2018 to be a Group IIIAB iron meteorite made of about 88.5% iron and 11.5% nickel. Central Michigan University geologist Mona Sirbescu authenticated the find and the Smithsonian later verified it, putting its value around $100,000 and naming it “Edmore.” […]