U.S. Potash mine, Carlsbad, New Mexico
Small Cabinet, 6.6 x 3.7 x 2.3 cm
Crystals of tabular, glassy and gemmy, nearly colorless aphthitalite reaching 1.3 cm across are emplaced over an earlier generation of the same species. What differentiates these crystals from others in this lot are the vivid blue halite inclusions inside almost all the aphthitalite crystals.