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Now showing items 31-40 of 89
Marcasite - pyrite's evil twin
(St. Croix Rockhounds, Stillwater, MN, 2008)
Greenstones, greenstones and green stones
(St. Croix Rockhounds, Stillwater, MN, 2004)
Moganite - A common mineral with a disapproved name
(St. Croix Rockhounds, Stillwater, MN, 1994)
Book review: Geology of the Lake Superior Region by Gene LaBerge, 1994, Geoscience Press.
(St. Croix Rockhounds, Stillwater, MN, 1994)
Sick meteorites
(St. Croix Rockhounds, Stillwater, MN, 1995)
How do dendrites form?
(St. Croix Rockhounds, Stillwater, MN, 2008)
Minerals of the Bronk Quarry, near Winona, Minnesota
(St. Croix Rockhounds, Stillwater, MN, 1990)
Deadly erionite
(St. Croix Rockhounds, Stillwater, MN, 1995)
Floating copper
(St. Croix Rockhounds, Stillwater, MN, 1997)
Minerals of the Bend Deposit, Taylor County, Wisconsin
(St. Croix Rockhounds, Stillwater, MN, 1991)