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
Multi-colored white and cinnamon brown strontianite aggregate with associated blue fluorite on the matrix. Note: Color variations due to localized hydrocarbon inclusions. Vivid white and orangey-brown fluorescence under black light. In top condition.