- Benitoite, Natrolite
- 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
- Small Cabinet, 7.5 x 6.7 x 3.6 cm
A SUPERB, old-time benitoite on natrolite specimen. Deep, indigo-blue crystals to 2.2 cm richly cover beautifully contrasting snow-white natrolite. Some of the benitoites are quite gemmy and lustrous. This fine piece was in the personal collection of Pete Bancroft. It is classic of older material from the pre-1970s era of collecting here with fatter, darker-colored crystals.