A Geoscience Digital Image Library
A Geoscience Digital Image Library
| Title | Hancockite |
|---|---|
| Description | Hancockite is a silicate with the chemical formula Ca1.2Pb0.5Sr0.2Mn2+0.2Al2Fe3+0.9Mn3+0.1 (SiO4)(Si2O7)O(OH). Hancockite is a member of the epidote group, very distinct in containing lead and strontium in place of part of the calcium of epidote. Hancockite is found in metamorphosed zinc deposits. Named for Elwood P. Hancock (1836-1916), of Berlinton, New Jersey, USA, collector of minerals from Franklin. It's main locality is in Franklin, New Jersey. This sample is approximately 9 cm. |
| Location | USA ▹ New Jersey. Near Franklin. |
| Photographer | Shannon Heinle. 2002-01-22. |
| Collection | University of North Dakota Mineralogy Collection #1273. |
| Key words | hancockite, silicate |
| Tech details | 423 KB. Hand specimen. Fujifilm FinePix S1Pro digital camera. |
| GeoDIL number | 2175 |
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