A Geoscience Digital Image Library
A Geoscience Digital Image Library
| Title | Sillimanite (Al2SiO5) from Dillon, Montana |
|---|---|
| Description | This sample contains mostly muscovite and quartz, but sillimanite (Al2SiO5) needles can also be seen (especially if you look at the high resolution image). It is about 8 cm across. |
| Location | USA ▹ Montana. Near Dillon. |
| Photographer | Shannon Heinle. 2001-04-24. |
| Collection | University of North Dakota Mineralogy Collection #1208. |
| Key words | Sillimanite, Montana |
| Tech details | 780 KB. Hand specimen. Fujifilm FinePix S1Pro digital camera; 60mm AF Nikon micro lens. |
| GeoDIL number | 385 |
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