A Geoscience Digital Image Library
A Geoscience Digital Image Library
| Title | Native mercury, cinnabar and calomel |
|---|---|
| Description | This sample contains gray mercury (liquid, Hg), reddish cinnabar (mercury sulfide, HgS) and yellow calomel (mercury chloride, HgCl). It is 6 cm across. Mercury is unique, as it is the only metal that is liquid at room temperature, having a melting point of -40 C, and a boiling point of 357 C. Mercury may be found in open spaces in rocks, in veins or as coatings. It is dense and has a high surface tension that causes it to form in small perfect spheres. |
| Location | USA ▹ California ▹ Napa County |
| Photographer | Darla Sondrol. 2001-06-27. |
| Collection | University of North Dakota Mineralogy Collection #3. |
| Key words | native mercury, calomel,cinnabar, California |
| Tech details | 663 KB. Hand specimen. Fujifilm FinePix S1Pro digital camera; 60mm AF Nikon micro lens. |
| GeoDIL number | 919 |
 | |