A Geoscience Digital Image Library
A Geoscience Digital Image Library
| Title | Lykins Formation (gypsum), Grand Rapids, Kent County, Michigan |
|---|---|
| Description | This rock is almost all gypsum, CaSO4•2H2O, a hydrated clacium sulfate. It is soft and fine-graned and includes a few dark colored veins. It is 9 cm across. |
| Chronostratigraphy | Permian-Triassic |
| Lithostratigraphy | Lykins Formation |
| Location | USA ▹ Michigan ▹ Kent. Near Grand Rapids. |
| Photographer | Mike Davis. 2001-04-10. |
| Collection | Ward’s Collection of Classic North American Rocks #69. |
| Key words | Lykins Formation, rock gypsum, gypsum, Michigan |
| Tech details | 455 KB. Hand specimen. Fujifilm FinePix S1Pro digital camera; 60mm AF Nikon micro lens. |
| GeoDIL number | 320 |
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