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Now showing items 31-40 of 77
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)
Minerals of the Bend Deposit, Taylor County, Wisconsin
(St. Croix Rockhounds, Stillwater, MN, 1991)
Green rust and invisible gold
(St. Croix Rockhounds, Stillwater, MN, 2004)
Titus and the glowing stone
(St. Croix Rockhounds, Stillwater, MN, 2007)
Minerals from kidney stones
(St. Croix Rockhounds, Stillwater, MN, 1996)
Hibbingite - swimming pool mineral
(St. Croix Rockhounds, Stillwater, MN, 1994)
Collecting trip to the Vulcan Materials Company Quarry, Racine, Wisconsin
(St. Croix Rockhounds, Stillwater, MN, 1997)