Hand Sample from Albert V. Carozzi collection Description: Gypsum Age: Middle Triassic, Middle Muschelkalk Locality: Wuctachmuhle, Saar, Black Forest, Germany Heading Info: Collection of 286 Thin Sections of Sedimentary Rocks, Petrologically Arranged, Dr. F. Krantz, Bonn; Index of Refraction" n=1.55 (see attached blue catalog which contains original mistakes from dealer!)
Summary
Hand Sample from Albert V. Carozzi collection Description: Gypsum Age: Middle Triassic, Middle Muschelkalk Locality: Wuctachmuhle, Saar, Black Forest, Germany Heading Info: Collection of 286 Thin Sections of Sedimentary Rocks, Petrologically Arranged, Dr. F. Krantz, Bonn; Index of Refraction" n=1.55 (see attached blue catalog which contains original mistakes from dealer!)