- Neptunite, Benitoite
- Cabinet, 10.4 x 6.3 x 4.8 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 with clustered and discrete neptunite and benitoite crystals on a natrolite-covered matrix from the famous Dallas Gem Mine. All of the neptunite crystals have hints of red fire and the largest crystal, at 3.1 cm, is doubly terminated. The partially gemmy, sharp benitoite crystals reach 1.1 cm. Ex. Richard Hauck Collection.