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C404 - Neptunite $ 900 SOLD Gem Mine, San Benito Co., California, USA cabinet - 11.5 x 7.5 x 3.5 cm Large Neptunite specimen with highly lustrous, jet black crystals against a white Natrolite coated matrix. Largest crystal is a 2.7cm double-terminated crystal at the upper right. ©2010-2018 Marin Mineral |