A Geoscience Digital Image Library

TitleGreen tourmaline
DescriptionThese samples of tourmaline are not of sufficient quality to be considered gems, but many samples from California are. Most people consider tourmaline to be a single mineral. But in fact it is a group of closely related mineral varieties with different colors. Green tourmaline is called verdelite; often the green in more pronounced than in this photograph. These crystals are 6 cm long.
LocationUSA ▹ California ▹ San Diego County
PhotographerDarla Sondrol. 2001-07-02.
CollectionUniversity of North Dakota Mineralogy Collection.
Key wordstourmaline, California
Tech details471 KB. Hand specimen. Fujifilm FinePix S1Pro digital camera; 60mm AF Nikon micro lens.
GeoDIL number1014