The Johnstown meteorite fell the afternoon of July 6, 1924, in Weld County, Colorado. Johnstown is an achondrite (meaning that it formed on a differentiated planetary body, and does not contain chondrules) from the diogenite group. Part of the HED (Howardites, Eucrites and Diogenites) group of achondrites, diogenites are believed to originate in the crust…

Utrecht is an ordinary (L6) chondrite that fell June 2nd, 1843, in the Netherlands. The meteorite’s spectacular fall was described by Dr. E.H. Baumhauer (Annalen der Physik 142(12): 465-506). Three to four explosions, compared to loud cannon fire, were heard within a 25 km radius of the city of Utrecht, followed by a whistling that…

Mayday is an ordinary (H4) chondrite found on a farm near Mayday, Kansas. The stone was discovered by the farm’s owner, who noticed an odd stone protruding from  the bank of his farm pond in July of 1955. The farmer was curious as to the stone’s origin, since it seemed different from the surrounding rocks,…

April’s Meteorite of the Month is Gujba, a bencubbinite (CBa) meteorite that fell in April of 1984. According to the Meteoritical Bulletin (MB 85), Gujba was witnessed by the occupants of the village of Bogga Dingare, Nigeria, as it fell in a cornfield the evening of April 3rd, 1984. Because the villagers broke it into…

Sioux County is an achondrite (eucrite-mmict) that fell in Nebraska August 8th, 1933.  The meteorite’s fall to Earth was well-recorded as it was mistaken for an earthquake by some, and written up in local newspapers.  This article first appeared on page 5 of the Lincoln Star (Lincoln, Nebraska), Thursday, August 10, 1933: Report Meteor Buried…