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