Neptunite

Unknown Owner
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Highly lustrous, jet-black neptunite crystals to 2.2 cm are beautifully scattered on the aesthetic, boat-like matrix vug on this classic and excellent specimen from the Dallas Gem Mine of California. Ex. Marty Lewadny Collection of Winnepeg, Canada. The well-centered, large neptunites and the contrasting/accenting snow-white natrolite and blue matrix are noteworthy.

Known provenance

DateCollectorAcquisition price
08/2024Unknown OwnerNot disclosed
The ArkenstoneNot disclosed

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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
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