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Neptunite
Neptunite Neptunite Neptunite
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Neptunite (Ref: R950)

Gem Mine, San Benito Co., California, USA
90mm x 60mm x 35mm
$280
Black Neptunite crystals and white natrolite atop a blue schist matrix. The Neptunite reach 2cm in size and include a wonderful 1.5cm doubly terminated crystal.
Data last checked on 12th Jul 2026 - specimen may no longer be available

From: Marin Minerals
Buy now from Marin Minerals

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See Also

Neptunite
Gem Mine, San Benito Co., California, USA
$280
27mm x 13mm x 13mm
From: Marin Minerals
Neptunite (DT)
Gem Mine, San Benito Co., California, USA
$275
32mm x 28mm x 18mm
From: Marin Minerals
Neptunite with Benitoite
Dallas Gem Mine, New Idria District, Diablo Range, San Benito Co., California, USA
$295
62mm x 44mm x 26mm
From: Bob Griffis Minerals
Neptunite on Natrolite
Dallas Gem Mine, New Idria District, Diablo Range, San Benito Co., California, USA
$240
52mm x 49mm x 24mm
From: Bob Griffis Minerals
Neptunite
Gem Mine, San Benito Co., California, USA
$350
37mm x 25mm x 23mm
From: Marin Minerals
Benitoite, Joaquinite, and Neptunite,
Dallas Gem Mine, Santa Rita Peak, New Idria Mining District, San Benito Co., California, USA
$350
From: Arkfeld Minerals
Neptunite (twin!)
Benitoite Gem Mine, San Benito Co., California, USA
$350
22mm x 10mm x 8mm
From: Marin Minerals
Benitoite, Neptunite, Joaquinite
Gem Mine, San Benito Co., California, USA
$350
60mm x 45mm x 20mm
From: Marin Minerals
Neptunite on Natrolite
Dallas Gem Mine, New Idria District, Diablo Range, San Benito Co., California, USA
$135
43mm x 32mm x 21mm
From: Bob Griffis Minerals
Neptunite
Gem Mine, San Benito Co., California, USA
$120
65mm x 40mm x 30mm
From: Marin Minerals
Neptunite on Natrolite
Dallas Gem Mine, New Idria District, Diablo Range, San Benito Co., California, USA
$90
84mm x 48mm x 44mm
From: Bob Griffis Minerals
Neptunite on Natrolite
Dallas Gem Mine, New Idria District, Diablo Range, San Benito Co., California, USA
$65
143mm x 103mm x 70mm
From: Bob Griffis Minerals
Benitoite, Neptunite
Gem Mine, San Benito Co., California, USA
$500
105mm x 60mm x 30mm
From: Marin Minerals
Neptunite on Natrolite
Dallas Gem Mine, New Idria District, Diablo Range, San Benito Co., California, USA
$20
107mm x 70mm x 33mm
From: Bob Griffis Minerals
Neptunite
Gem Mine, San Benito Co., California, USA
$750
85mm x 65mm x 30mm
From: Marin Minerals
* price is an approximate conversion and may not be accurate.

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