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Placer gold from the St. Croix Dalles, Minnesota and Wisconsin
(St. Croix Rockhounds, Stillwater, MN, 1989)
What's in a vug?
(St. Croix Rockhounds, Stillwater, MN, 1988)
Minnesota twin crystals
(St. Croix Rockhounds, Stillwater, MN, 1989)
Sand by sand
(1984)
Phyllis Goldin and Wanda Brown's first album, Sand By Sand (1984), is a blend of piano and voices, songs of love and social issues
Crystal diving for fluid inclusions
(St. Croix Rockhounds, Stillwater, MN, 1989)
Why is there so much native copper in Michigan?
(St. Croix Rockhounds, Stillwater, MN, 1988)
Old lead mines of Southeastern Minnesota
(St. Croix Rockhounds, Stillwater, MN, 1988)
Minerals and geology of the Weyerhauser Copper Mine, near Gordon, Douglass County, Wisconsin
(St. Croix Rockhounds, Stillwater, MN, 1989)
False forms
(St. Croix Rockhounds, Stillwater, MN, 1989)
The world's largest crystal
(St. Croix Rockhounds, Stillwater, MN, 1988)