A Geoscience Digital Image Library
A Geoscience Digital Image Library
| Title | Cookeite with elbaite |
|---|---|
| Description | Cookeite is a silicate with the chemical formula LiAl5Si3O10(OH)8. Cookeite belongs to the chlorite group. It is the alteration of lithia tourmalines and lepidolite in pegmatites. Cookeite is named for the American mineralogist and chemist Josiah B. Cooke, Jr. This sample is approximately 7 cm. |
| Location | Brazil ▹ Minais Gerais. Near Ipa. |
| Photographer | Shannon Heinle. 2001-11-28. |
| Collection | University of North Dakota Mineralogy Collection #1531. |
| Key words | cookeite, silicate |
| Tech details | 413 KB. Hand specimen. Fujifilm FinePix S1Pro digital camera; 60mm AF Nikon micro lens. |
| GeoDIL number | 1855 |
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