EB91I2: Doubly terminated Neptunite on Natrolite - California State Gem Mine (Benitoite Gem Mine), California USA
Doubly terminated Neptunite on Natrolite

California State Gem Mine (Benitoite Gem Mine), Dallas Gem Mine area, San Benito River headwaters area, New Idria District, Diablo Range, San Benito County, California  USA

Specimen size: 7.3 × 6.3 × 3.1 cm = 2.9” × 2.5” × 1.2”
Main crystal size: 3.6 × 0.6 cm = 1.4” × 0.2”

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