Title | Hardystonite with willemite from Franklin, New Jersey |
Description | These samples from Franklin, New Jersey, USA are mostly brown hardystonite Ca2ZnSi2O7 with lighter colored veins of willemite, Zn2SiO4. Hardystonite is a rare mineral related to gehlenite. It is popular with museums and mineral collectors because it fluoresces dark purple under short-wave ultraviolet light. The smaller specimen is about 5 cm across. |
Location | USA ▹ New Jersey ▹ Sussex. Near Franklin. |
Photographer | Nessa Eull. 2001-03-28. |
Collection | University of North Dakota Mineralogy Collection. |
Key words | hardystonite, willemite, New Jersey |
Tech details | 584 KB. Hand specimen. Fujifilm FinePix S1Pro digital camera; 60mm AF Nikon micro lens. |
GeoDIL number | 276 |
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