| Title | Willemite with zincite (troosite) and franklinite from Franklin, New Jersey |
| Description | This sample contains green willemite (Zn2SiO4) with red-brown zincite (ZnO), and black franklinite (ZnFe2O4). Troosite is the name sometimes used for Mn-rich willemite. This sample, about 9 cm across, comes from the world famous mineral collecting site at Franklin, New Jersey. |
| Location | USA ▹ New Jersey. Near Franklin. |
| Photographer | Darla Sondrol. 2001-03-26. |
| Collection | University of North Dakota Mineralogy Collection #1137. |
| Key words | willemite, zincite, troosite, Franklinite, New Jersey |
| Tech details | 669 KB. Hand specimen. Fujifilm FinePix S1Pro digital camera; 60mm AF Nikon micro lens. |
| GeoDIL number | 260 |
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