- Neptunite, Natrolite
- Small Cabinet, 7.6 x 4.8 x 3.1 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
An aesthetic and richly covered specimen of highly lustrous, black neptunite crystals to 2.4 cm attractively scattered on natrolite-covered matrix from the famous and now-closed Dallas Gem Mine. All of the major neptunites are pristine and the large crystal is doubly terminated. Choice material from the Chris Korpi Collection.