A Geoscience Digital Image Library
A Geoscience Digital Image Library
| Title | Magnetite |
|---|---|
| Description | Magnetite, Fe3O4 (iron oxide), is another form of iron ore. Its most unusual feature is that it is strongly magnetic. It was discovered by the ancient Greeks and was used to make compasses. Its hardness is about 5-6, and it has a black streak. |
| Location | USA ▹ Arkansas. Near Magnet Cove. |
| Photographer | Darla Sondrol. 2001-07-30. |
| Collection | University of North Dakota Mineralogy Collection #412. |
| Key words | Magnetite, Arkansas |
| Tech details | 867 KB. Hand specimen. Fujifilm FinePix S1Pro digital camera; 60mm AF Nikon micro lens. |
| GeoDIL number | 1386 |
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