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Quartz on Fluorite, Sub-Rosiclare Level, Deardorff Mine, Ozark-Mahoning Company, Cave-in-Rock District, Southern Illinois, Mined ca. 1950's, Koster Collection, Medium Cabinet 3.0 x 6.5 x 11.0 cm, $450. Online 3/11. SOLD.


  • $ 45000

Plate-like group of rosy purple fluorite encrusted with a sparkly druse of quartz. Brown sphalerite matrix. This is a classic specimen from mining ca. 1950s in excellent condition.  A lovely and rare piece. Sam & Ann Koster Collection. Entered into Ross C. Lillie database as RCL2583.