Neptunite, Benitoite - image 1

Neptunite, Benitoite

M

Mike Keim
0 for sale
Neptunite with benitoite, 4.1 cm, from the Benitoite Gem mine, San Benito County, California. Jeff Scovil photo.

Product details

Species
Neptunite, BenitoiteAbout Neptunite →
SizeMiniature
Dimensions4.1 cm
Added on02/13/2026
Locality
USA, California, Benitoite Gem Mine; Dallas Gem Mine area, San Benito River, New Idria District, Diablo Range, San Benito Co., California
Publications
  • Mineralogical Record Mineral Collections In California page 133

Learn more

Neptunite
Mineral guide
Learn about Neptunite
jet-black, high-luster prisms with natrolite and benitoite; California State Gem Mine specimens exemplify striking contrast, rarity, and display.
Regional guide
Neptunite from Benitoite Gem Mine; Dallas Gem Mine area, San Benito River, New Idria District, Diablo Range, San Benito Co., California
Sign in to contribute