A Geoscience Digital Image Library
A Geoscience Digital Image Library
| Title | Prehnite, calcite and apophyllite |
|---|---|
| Description | Prehnite, calcite and apophyllite are all visible in this 7 cm sample. Prehnite, Ca2Al2Si3O10(OH)2 (calcium aluminum silicate hydroxide), is the distinctive color green, while the lighter calcite and apophyllite can be harder to tell apart. |
| Location | USA ▹ Massachusetts. Near Notch. |
| Photographer | Nessa Eull. 2002-02-20. |
| Collection | University of North Dakota Mineralogy Collection #1740. |
| Key words | Prehnite, Calcite, Apophyllite, Massachussettes |
| Tech details | 626 KB. Hand specimen. Fujifilm FinePix S1Pro digital camera; 60mm AF Nikon micro lens. |
| GeoDIL number | 2392 |
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