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How Big, Beautiful Crystals Form by Dr. John Rakovan at the 2016 Dallas Mineral Collecting Symposium
John Rakovan | The Mineral City Show 2023, Tucson, S02 E09.
Dallas Mineral Collecting Symposium: 2018
Dallas Symposium 2017: 03 - Federico Barlocher
Dallas Symposium 2018: 04 - Alain Martaud
2019 Dallas Symposium - 02 - Edward Boehm
Dallas Symposium 2018: 00 - Rob Lavinsky Opening
Dallas Symposium 2017: 01- Rob Lavinsky Opening
Dallas Symposium 2017: 05 - Emanuele Marini
Introduction to the eRMS 2020 Technical Session - John Rakovan
Dallas Symposium 2017: 04 - George Rossman
2019 Dallas Symposium - 09 - Thomas Nagen
