Fluorite on Sphalerite, Cave-in-Rock District, Southern Illinois, Mined c. 1960's-1970's, ex. Sam and Ann Koster Collection, Large Cabinet 8.0 x 8.5 x 13.5 cm, $450. Online Dec. 19
NSMW13535
Strontianite with Fluorite, Rosiclare Level, Minerva No. 1 Mine, Ozark-Mahoning Co., Cave-in-Rock District, Southern Illinois, Mined c. 1990, ex. Sam and Ann Koster Collection, Small Cabinet 4.0 x 6.7 x 7.0 cm, $200. Online Dec. 19
NSMW13533
