Neptunite, Joaquinite
at-auction$ 50
- Locality
- Gem Mine, San Benito Co., California, USA
- Minerals
- Neptunite
- Dimensions
- 3.5 x 3 x 2 cm
- Size class
- Miniature
- SID
- R303
Glassy black Neptunite crystals with white Natrolite on a schist matrix. There are also small tan-colored crystals of the rare mineral Joaquinite. This mine is long closed and specimens are getting harder to find.