| Title | Franklinite and calcite, from Franklin, New Jersey, USA |
| Description | This sample contains conspicuous black franklinite, a spinel mineral with composition (Zn,Fe,Mn)(Fe,Mn)2O4, and calcite. It is from the famous mine and mineral deposit area at Franklin, New Jersey. The specimen is about 11 cm across. |
| Location | USA ▹ New Jersey ▹ Sussex. Near Franklin. |
| Photographer | Nessa Eull. 2001-04-19. |
| Collection | University of North Dakota Mineralogy Collection #3409. |
| Key words | franklinite, calcite, New Jersey |
| Tech details | 531 KB. Hand specimen. Fujifilm FinePix S1Pro digital camera; 60mm AF Nikon micro lens. |
| GeoDIL number | 367 |
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