Title | Thorite and quartz, Grafton, New Hampshire |
Description | Thorite is a thorium silicate, (Th,U)SiO4, often containing significant amounts of uranium. Here, black thorite crystals are seen with quartz. Both minerals show well developed crystal forms. This specimen, from a pegmatite, is about 7 cm across. |
Location | USA ▹ New Hampshire ▹ Grafton. Near Grafton. |
Photographer | Nessa Eull. 2001-03-26. |
Collection | University of North Dakota Mineralogy Collection #1193. |
Key words | thorite, quartz |
Tech details | 860 KB. Hand specimen. Fujifilm FinePix S1Pro digital camera; 60mm AF Nikon micro lens. |
GeoDIL number | 254 |
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