Quartz ps. afte gypsum Crawford, Dawes County, Nebraska, ...
Description: Quartz ps. afte gypsum Crawford, Dawes County, Nebraska, USA 7.2 x 9.2 cm. Rosette of flattened quartz blades replacing gypsum. At one time this piece was in the E. M. Gunnell and Ed Swoboda pseudomorph collection. Gunnell's label indicates he received it as a gift in 1959.