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Collecting trip to the Vulcan Materials Company Quarry, Racine, Wisconsin
(St. Croix Rockhounds, Stillwater, MN, 1997)
Agate hunters point way to an impact crater
(St. Croix Rockhounds, Stillwater, MN, 1998)
Columnar joints
(St. Croix Rockhounds, Stillwater, MN, 1999)
Agates - Rich in fiber!
(St. Croix Rockhounds, Stillwater, MN, 1996)
Hibbingite - swimming pool mineral
(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)
Lustrous behavior
(St. Croix Rockhounds, Stillwater, MN, 1992)
Sick meteorites
(St. Croix Rockhounds, Stillwater, MN, 1995)
Rust minerals
(St. Croix Rockhounds, Stillwater, MN, 1996)
Lazulite or Lazurite?
(St. Croix Rockhounds, Stillwater, MN, 1999)