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2021
Denver Hard Rock Summit
September 18, 2021
Joel Bartsch
Aurore Giguet
Renate Lafler
Bryan Lees
Gail Spann
George Sparks
Dave Waismann
September 17, 2021
Dr. Virgil Lueth
September 17, 2021
Dr. Peter Modreski
Dr. Terry Wallace
September 16, 2021
Ryan Bowling
September 16, 2021
Dr. Lou Taylor
September 16, 2021
Jeff Scovil
2018
Denver Fine Mineral Show
September 14, 2018
Crystal PeakCollecting
1873-1986
Teller County, CO USA
September 15, 2018
Outstanding Minerals of
Colorado Ore Deposits
Collector's Edge
September 13, 2018
Minerals of
Mibladen Morocco
September 12, 2018
Wulfenite: The State
Mineral of Arizona USA
2016
Denver Fine Mineral Show
September 16, 2016
Blistered Fingers
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