Title | Schorl |
Description | Schorl belongs to the tourmaline group. It has the chemical formula NaFe3(Al,Fe)6Si6O18(BO3)3(OH)4. Schorl can be a major component of igneous and metamorphic rocks. Some notable occurences include Brazil, Colorado, and the Appalachian mountains. This sample is approximately 6 cm. |
Location | USA ▹ California. Near San Diego. |
Photographer | Shannon Heinle. 2001-11-27. |
Collection | University of North Dakota Mineralogy Collection #1295. |
Key words | schorl, tourmaline |
Tech details | 476 KB. Hand specimen. Fujifilm FinePix S1Pro digital camera; 60mm AF Nikon micro lens. |
GeoDIL number | 1848 |
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