| Title | Sphalerite with pyrite, gypsum and digenite from Tintac, Utah | 
| Description | This 8 cm wide sample contains conspicuous white blades of gypsum, CaSO4•2H2O, mingled with a fine grained mass that is mostly brownish sphalerite, (Zn,Fe)S, but also contains some digenite, Cu9S5.  Sphalerite and digenite are both mined for the metals they contain. | 
| Location | USA ▹ Utah. Near Tintac. | 
| Photographer | Nessa Eull. 2001-07-10. | 
| Collection | University of North Dakota Mineralogy Collection #176. | 
| Key words | sphalerite, pyrite, gypsum, digenite, Utah | 
| Tech details | 415 KB. Hand specimen. Fujifilm FinePix S1Pro digital camera; 60mm AF Nikon micro lens. | 
| GeoDIL number | 1086 | 
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