A Geoscience Digital Image Library

DescriptionBeryl is a silicate with the chemical formula Be3Al2(SiO3)6. Beryl is not a well known mineral. It comes in many color varieties. The green beryl, emerald and blue beryl, aquamarine, are the most popular among gem collectors. The name comes from the Greek berylos, and the meaning has been lost. Some varieties fluorescent, insoluble in acids, a very important economic mineral and the major source of beryllium. This sample is approximately 5 cm.
LocationUSA ▹ South Dakota. Near Keystone.
PhotographerShannon Heinle. 2001-11-30.
CollectionUniversity of North Dakota Mineralogy Collection #1305.
Key wordsberyl, silicate
Tech details293 KB. Hand specimen. Fujifilm FinePix S1Pro digital camera; 60mm AF Nikon micro lens.
GeoDIL number1867