- Neptunite, Natrolite
- Small Cabinet, 6.3 x 6.2 x 5.0 cm
- Dallas Gem Mine (Benitoite Mine; Benitoite Gem Mine; Gem Mine), Dallas Gem Mine area, San Benito River headwaters area, New Idria District, Diablo Range, San Benito Co., California
A fine specimen of a 3.8 cm cluster of lustrous, jet-black to rust-brown neptunite crystals placed on a sculptural matrix of snow-white natrolite and serpentinite from the Dallas Gem Mine. The large neptunite crystals are sharply terminated.