A Geoscience Digital Image Library

DescriptionAgate is a cryptocrystalline (crystals too small to be seen even by a microscope) variety of quartz. These varieties are divided more by character than by color. These different variatites are often used as semi-precious gemstones and for decorative purposes.
LocationUSA ▹ Virginia ▹ Nelson
PhotographerShannon Heinle. 2001-06-18.
CollectionUniversity of North Dakota Mineralogy Collection #1624.
Key wordsagate, quartz, cryptocrystalline
Tech details337 KB. Hand specimen. Fujifilm FinePix S1Pro digital camera; 60mm AF Nikon micro lens.
GeoDIL number779