Neptunite, Natrolite
1
Neptunite crystals to 6.7 cm on natrolite, from the Dallas Gem mine, San Benito County, California. Collected by Len Pisciotta in the 1990s. Photo by Robert Mosley.
Product details
SizeSmall Cabinet
Dimensions6.7 cm
Added on03/26/2026
LocalityUSA, California, Dallas Mine
Publications
- Mineralogical Record The Kevin Brown Collection page 230
Learn more

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

Comments