- Thumbnail, 2.5 x 1.3 x 1.2 cm
- California State Gem Mine, New Idria Mining District, San Benito Co., California, USA
- Ex. Irv Brown
This is a simple, stark cluster featuring a textbook neptunite crystal with the top luster, and jet black color with hidden hints of red that makes them the world's best. This is an old specimen, from a local California collection before it was with Irv Brown.