Benstonite, Bethel Level, Minerva #1 Mine, Minerva Oil Company, Cave- in-Rock District, Southern Illinois, Mined c. 1960's, Ron Roberts Collection UD-30, Miniature 2.0 x 2.5 x 4.5 cm, $250. Online September 14.
NSMW13200
Bright purplish-blue fluorite breccia cemented by ivory white benstonite crystals to 8 mm across. Very pretty specimen of this rare carbonate from the collection of Harold "Shorty" Millikan of Rosiclare.