Curator of the Department of Earth and Planetary Sciences at the American Museum of Natural History, Dr. George Harlow visits Night People this week to discuss geology, the origin of minerals on Earth, and the Museum's incredible gem collection. Tonight at 7 on WFMU
Hundreds of striking mineral-bearing specimens are presented, including a giant topaz crystal from Brazil, a 4.5-ton block of azurite-malachite ore from Arizona, and a nephrite jade slab from Poland. A sequence of cases on one side of the hall presents the system of classifying minerals based on che…