- Benitoite, Neptunite
- Small Cabinet, 7.5 x 3.7 x 2.0 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 striking and very rich benitoite plate dominated by a very gemmy, 1.2 cm, upright crystal. The largest crystal is 1.8 cm and all of the benitoites are pristine. The neptunites and white natrolite are beautiful compliments. Old material from this now-closed mine. Ex. John Ydren Collection.