A Geoscience Digital Image Library

TitleDumortierite from Oreana, Nevada
DescriptionThis sample of Dumortierite is from Oreana, Nevada. Dumortierite has composition near to (Al,Fe)7(BO3)(SiO4)3(O,OH)3. The purple color is typical of dumortierite, although blue and pink-red varieties are also common. Dumortierite can be a component of granitic rocks, and also occurs in some ore deposits and metamorphic rocks. This specimen is about 7 cm in length.
LocationUSA ▹ Nevada. Near Oreana.
PhotographerNessa Eull. 2001-03-28.
CollectionUniversity of North Dakota Mineralogy Collection #1296.
Key wordsdumortierite, Nevada
Tech details836 KB. Hand specimen. Fujifilm FinePix S1Pro digital camera; 60mm AF Nikon micro lens.
GeoDIL number271