Mineral: Neptunite
Locality: California State Gem Mine (Benitoite Gem Mine), San Benito River headwaters area, Santa Rita Peak, New Idria District, San Benito County, California, USA
Dimensions: 3.3 x 6.2 cm

Description: Lustrous prismatic brown-black neptunite crystals in and on white natrolite and crossite matrix with a benitoite crystal perched on the right end.

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