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A Geoscience Digital Image Library

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TitleJoaquinite, natrolite and benitoite from San Benito County, California
DescriptionThis sample contains yellow-brown joaquinite with white natrolite and blue-green benitoite from San Benito, California, USA. Benitoite is a rare mineral having composition BaTiSi3O9. Joaquinite, also rare, has composition NaBa2FeCe2(Ti,Nb)2(SiO3)8O2(OH,F)┬ĚH2O. Natrolite is a zeolite with composition Na2Al2Si3O10-2H2O. These minerals are only found together in San Benito California, where they formed by alteration of a serpentinite. This specimen is about 7 cm across.
LocationUSA ▹ California ▹ San Benito. Joaquin Ridge, Diablo Range.
PhotographerNessa Eull. 2001-03-28.
CollectionUniversity of North Dakota Mineralogy Collection #1228.
Key wordsjoaquinite, natrolite, benitoite, California
Tech details751 KB. Hand specimen. Fujifilm FinePix S1Pro digital camera; 60mm AF Nikon micro lens.
GeoDIL number273