Detailed information
Species
Joaquinite-(Ce), Neptunite
Dimensions
87 x 84 x 39
mm
Locality
California State Gem Mine New Idria District, Diablo Range San Benito Co., California, USA
Condition
No recorded repairs
Excellent lustrous black prismatic crystals of Neptunite measuring to 1.8 cm long pleasingly contrast against the white Natrolite matrix. Rare scattered micro-crystals of brown Joaquinite-(Ce) are seen emerging from the Natrolite. In addition, very rare micro-bladed crystal groups of possible Orthojoaquinite-(Ce) occur in the Natrolite. A fine specimen from the California State Gem mine in San Benito County, California, USA.