An assortment of gypsum fragments, also called selenite. Date of photo unknown.
4"x6" black and white glass negative
© University Archives, Forsyth Library, Fort Hays State University
Digitized by Forsyth Digital Collections
Wooster, Lyman Dwight, "Minerals - Gypsum" (2021). Lyman Dwight Wooster Photograph Collection. 396.