Outstanding pair of gemmy Fluorites from the famous Cave-in-Rock district in southern Illinois. These gemmy, blue-purple Fluorites have good luster, very fine zoning, and sharp edges. Finding both gemminess and good luster together is unusual and makes pieces like this highly coveted. The associated Calcites have very good luster and are fluorescent. This is a fine, quality combination piece from a famous locality. Excellent aesthetics.