Neptunite with Joaquinite-(Ce) - image 1
specimen video

Neptunite with Joaquinite-(Ce)

Unknown Owner
Help improve this recordNo owner is registered for this specimen yet. If it's yours or you know more about it, you can add the owner, provenance, publications and other details.
Sign in to contribute
An excellent small cabinet display specimen of terminated, prismatic Neptunite crystals measuring to 2.6 cm from the California State Gem Mine in San Benito County, California, USA. Two of the Neptunite crystals are double terminated and all have the characteristic black lustre with occasional flashes of bright metallic red. These contrast perfectly against the snow-white Natrolite covered matrix. In association with the Neptunite, at least five orange microcrystals of the rare mineral Joaquinite-(Ce) are partly exposed from the white Natrolite. A superb specimen.

Product details

SpeciesNeptunite, Joaquinite
SizeSmall Cabinet
Dimensions4.7 x 7.2 x 2.2 cm
Added on10/24/2024
LocalityUSA, California, California State Gem Mine

Known provenance

DateCollectorAcquisition price
07/2026Unknown Owner$1,500.00
—Crystal ClassicsNot disclosed

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.
Neptunite
Regional guide
Neptunite from California State Gem Mine, USA
California State Gem Mine, San Benito County - famed for black neptunite with blue benitoite in natrolite, offering dramatic contrast and collector appeal.