A Geoscience Digital Image Library
A Geoscience Digital Image Library
| Title | Nepheline syenite, Blue Mountain, Ontario, Canada |
|---|---|
| Description | This Precambrain intrusive igneous rock is a fine to medium grained leucocratic rock composed of nepheline, albite and microcline with variable amounts of magnetite, biotite, and hornblende. It is 9 cm across. |
| Chronostratigraphy | Precambrian |
| Geologic province | Grenville |
| Location | Canada ▹ Ontario ▹ Methuen Township. Near Blue Mountain. |
| Photographer | Joseph Hartman. 2001-02-06. |
| Collection | Ward’s Collection of Classic North American Rocks #17. |
| Key words | Precambrian, nepheline, syenite, Ontario, Canada |
| Tech details | 804 KB. Hand specimen. Fujifilm FinePix S1Pro digital camera; 60mm AF Nikon micro lens. |
| GeoDIL number | 28 |
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