This is a nice miniature from one of my favorite fluorite localities in the Midwest. The Pea Ridge was an underground Iron mine, a real rarity these days, and produced a whole range of minerals including calcite, chalcopyrite, fluorapatite, fluorite and other species over a long and productive history. Piece has fluorite crystals up to 2 cm on edge with typical hematite druse and associated chalcopyrite. Mined ca. early 1980s. Tiny chip on edge of main crystal.  Betty Kalaskie Collection #42-86.