A Geoscience Digital Image Library
A Geoscience Digital Image Library
| Title | Cleiphane (var. sphalerite) from Franklin, New Jersey |
|---|---|
| Description | Sphalerite, also known as blende or zinc blende, has composition (Zn,Fe)S (zinc-iron sulfide). It can occur in many hues. The sample contains brown sphalerite and cleiophane, a transparent, colorless or lightly colored variety of sphalerite. Cleiophane consists of almost pure zinc sulphide, with a trace of cadmium. Cleiophane is also a fluorescent mineral. Natural sphalerites always contain some iron and as iron content increases the color becomes darker. Sphalerite is the principle ore mineral for zinc. This sample is 9 cm across. |
| Location | USA ▹ New Jersey. Near Franklin. |
| Photographer | Darla Sondrol. 2001-07-10. |
| Collection | University of North Dakota Mineralogy Collection #160. |
| Key words | cleiophane, sphalerite, New Jersey |
| Tech details | 840 KB. Hand specimen. Fujifilm FinePix S1Pro digital camera; 60mm AF Nikon micro lens. |
| GeoDIL number | 1096 |
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