Neptunite

California North and Central Americas Type Locality United States

ncat JR3 Benitoite, Neptunite, California State Gem Mine, Santa Rita Peak, San Benito County, California, USA

Two joined benitoite crystals (I hesitate to say twinned as I don’t know what sorts of twins can occur), shown in normal, longwave ultraviolet (red), and shortwave ultraviolet (blue). It is really interesting how different...

January 11, 2024

California North and Central Americas United States

0582 Neptunite, Dallas gem mine, San Benito Co., California, USA

A single black crystal with a hint of internal red fire. Width of view 11.5mm. Stack of 60 images. Click on the image below for a higher resolution version.

April 27, 2023

ncat JP1412 Neptunite, Makatite, Microcline, Aris Quarries (Ariskop Quarry; Railway Quarry), Aris, Windhoek District, Khomas Region, Namibia

October 8, 2019

Canada North and Central Americas

8071 M3956 Neptunite, Mont Saint-Hilaire, La Vallee-du-Richelieu RCM, Monteregie, Quebec, Canada

ex Bernie and Margaret Day Collection

October 5, 2019

California North and Central Americas United States

30037 Djurleite, Neptunite, California State Gem Mine, New Idria District, San Benito Co., California, USA

Distinct well-formed crystals.

October 5, 2019

1923 Neptunite, Aris Quarry, Windhoek, Namibia

September 22, 2019