| Apatite in matrix. These specimens are becoming quite rare. Cerro de Mercado Mine, Victoria de Durango, Mun. de Durango, Durango, Mexico. About 3" wide by 2" deep by 2" high. From my personal collection. Canon EOS 50D, Canon EF 100 mm ƒ/2.8 macro USM prime @ ISO 100, ƒ/22, 15 sec. exposure, tripod, 2 sec shutter delay, available light (40w fluorescent overhead @ about 4 feet.) #minerals EXIF:
| Width: | | 1982 |
| Height: | | 1982 |
| Company: | | Canon |
| Camera: | | Canon EOS 50D |
| Shot On: | | 2008:10:28 06:18:30 |
| Aperture: | | ƒ/22.0 |
| Focal Length: | | 100.0mm |
| Metering Mode: | | Spot |
| Exposure Mode: | | Auto |
| Flash: | | Did Not Fire |
| Exposure Time: | | 15.0 seconds |
| Exposure Program: | | Aperture Priority |
| ISO: | | 100 |
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