Quelques-uns des principaux sujets de Géoforum
![]() ▲ Bourse aux minéraux et fossiles de Beauvais les 29 et 30 mars ▲ |

▲ Bourse aux minéraux et fossiles de Beauvais les 29 et 30 mars ▲
Chalcopyrite et Dolomite
Sweetwater Mine, Ellington, Viburnum Trend District, Reynolds Co., Missouri - Etats-Unis
Copyright
© © Collection Thierry JEAN
Photo Information
- Taken with NIKON E5400
- Focal Length 11.8 mm
- Exposure Time 10/31
- f Aperture f/8.0
- ISO Speed 50
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