Benitoite, Natrolite, Neptunite, Joaquinite, California State Gem Mine, San Benito Co, CA, USA - image 1

Benitoite, Natrolite, Neptunite, Joaquinite, California State Gem Mine, San Benito Co, CA, USA

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A heck of a combination specimen. This piece features several species including benitoite, natrolite, neptunite, joaquinite, and even what I think is a very small diopside! A Willard Perkins piece with his famous typed labels on the top of the Styrofoam in the box.

Product details

SpeciesNeptunite, Benitoite, Joaquinite, Natrolite
SizeMiniature
Dimensions3.4 x 2.3 x 1.8 cm
Added on12/20/2024
LocalityUSA, California, California State Gem Mine
Current owner
Unknown Owner
Acquired
Jan 2026
Previous owners
DateCollectorAcquisition price
—DanZ RockshopNot 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.
Locality guide
California State Gem Mine
California State Gem Mine, USA — type locality for benitoite; gem-quality blue benitoite with natrolite and neptunite, highly prized by collectors.