Fluorite and Calcite, El Potosi Mine, Santa Eulalia Chihuahua, Mexico, Mined c. Late 1980s, Gail Hall Collection C# 89-1, Small Cabinet 3.0 x 6.0 x 8.0 cm, $75. Online 8/25
Plate of transparent minty green fluorite one one side and lustrous manganoan brush-type calcite on reverse. Works equally well as either species for display. Mined c. late 1980s. Gail Hall Collection CE 89-1. One tiny edge rub on one fluorite.