A Geoscience Digital Image Library

TitleThorite and quartz, Grafton, New Hampshire
DescriptionThorite 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.
LocationUSA ▹ New Hampshire ▹ Grafton. Near Grafton.
PhotographerNessa Eull. 2001-03-26.
CollectionUniversity of North Dakota Mineralogy Collection #1193.
Key wordsthorite, quartz
Tech details860 KB. Hand specimen. Fujifilm FinePix S1Pro digital camera; 60mm AF Nikon micro lens.
GeoDIL number254