Neptunite from Benitoite Gem Mine, San Benito County, California, USA - image 1

Neptunite from Benitoite Gem Mine, San Benito County, California, USA

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A sharp striated jet black neptunite juts up from a white natrolite matrix. An imposing juxtaposition of color and contrast. There are some impressions along the top left of the neptunite but they are not damage after checking under a microscope. Excellent representation of this uncommon species from California.

Product details

SpeciesNeptunite
SizeMiniature
Dimensions3.2 x 1.9 x 1.3 cm
Added on09/13/2025

Current owner

Unknown Owner
Acquired
Mar 2026
Price paid
$0.00

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 Benitoite Gem Mine
Contribute
Locality guide
Benitoite Gem Mine
Benitoite Gem Mine, USA - California state gemstone locality famed for sapphire-blue benitoite crystals on natrolite, with rare paragenesis and collector value.