2.6" Lustrous Neptunite Crystals in Natrolite Matrix - California

This 2.6" wide specimen features lustrous, black (deep-red) neptunite crystals in a natrolite-rich matrix, collected from the Benitoite Gem Mine in San Benito County, California. These crystals often form in association with benitoite, a rare blue barium titanium cyclosilicate mineral that's found in only a handful of locations. San Benito County is known for producing the highest quality of benitoite crystals.

The specimen has been mounted to an acrylic display base with glue.