A Geoscience Digital Image Library
A Geoscience Digital Image Library
| Title | Chalcedony |
|---|---|
| Description | Chalcedony is a cyptocrystalline (crystals too small to be seen even by a microscope) variety of quartz. These varieties are divided more by character than by color. Chalcedony or agate is divided into innumeral types that have been named for locally common varieties. |
| Photographer | Shannon Heinle. 2001-06-25. |
| Collection | University of North Dakota Mineralogy Collection #1636. |
| Key words | chalcedony, cyptocrystalline |
| Tech details | 188 KB. Hand specimen. Fujifilm FinePix S1Pro digital camera; 60mm AF Nikon micro lens. |
| GeoDIL number | 847 |
 | |