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March 2023: Geode Night - Journey of the Mexican Geode, Las Choyas Geode Mine, Chihuahua, Mexico by Jeff Smith February 2023: A Modernized Stratigraphic Framework: Revising and Reconciling Stratigraphy Across Pennsylvania by Hailey Filippelli September 2022: Flintknapping 101 by Ken Burton August 2022: Show & Tell by members and visitors May 2022: Pennsylvania Caves: A Geological Overview by Dr. William B. White April 2022: Land and Geology of Pennsylvania "A Portrait of our Commonwealth" by Dr. Robert Altamura February 2022: Applied Paleontology by Dr. Charles E. Miller, Jr. January 2022: The Seven Metals of Antiquity That Forged the Modern World by Paul Fagley September 2021: Iris Agates and Cantor Dusts: The Textural Complexity of Agates by Dr. Peter Heaney We are grateful to GIA and Dr Heaney for providing this video of his presentation from the 2021 Sinkankas Symposium, as we did not record his NMS presentation. August 2021: Show and Tell by the members May 2021: "Evolution" of a Fossil – Arthrophycus Alleghaniensis: The story of the "Jointed Seaweed" by Paul Fagley Also see photo: variety of diameters of Arthrophycus April 2021: Start to Finish: The Process of Mining to Selling New Mexico Thundereggs by Lori Lytle Coleman March 2021: Gembone: Gem Dino Bone by Daniel Bontempo February 2021: Caves and Karst: The Crossroads of the Geosciences by Dr. George Veni, National Cave and Karst Research Institute January 2021: Dinosaurs of Pennsylvania: What we know about them and their neighbors by Dr. Steven Jasinski, State Museum of Pennsylvania December 2020: Spherical Structures in Rhyolite by Daniel Bontempo November 2020: Making the Case for Celestine as the Pennsylvania State Mineral by Dr. Peter Heaney, Penn State Summer 2020: Nicolaus Steno, the most important scientist you've never heard of (the father of mineralogy, crystallography, geology, and paleontology). by Dr. Andrew Sicree It is in two parts on YouTube (improved audio clarity in this presentation); to view it, use each of the following links: Part 1 Part 2 May 2020: Fluorite: The Fourth Mineral by Dr. Andrew Sicree Part 1 Part 2 Part 3 |
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