A Geoscience Digital Image Library
A Geoscience Digital Image Library
| Title | Quartz, jasper |
|---|---|
| Description | Jasper is a variety of chert, which is the general term applied to granular cryptocrystalline quartz (SiO2) varieties. It is thought to form by the replacement of calcareous rock by silica-rich solutions and by direct marine precipitation of silica gel or organic silica. Jasper is commonly associated with interbedded hematite ore deposits of Precambrian age. |
| Location | USA ▹ Arizona. Near Cave Creek. |
| Photographer | Darla Sondrol. 2002-03-22. |
| Collection | Ward’s Classroom Collection of Gem Minerals #15. |
| Key words | jasper, quartz, Arizona |
| Tech details | 324 KB. Hand specimen. Fujifilm FinePix S1Pro digital camera; 60mm AF Nikon micro lens. |
| GeoDIL number | 2520 |
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