This image is not available for purchase in your country.

Geode, thin section micrograph

Geode, thin section micrograph

C035/9531

Rights Managed

This image is not available for purchase in your country.

Please contact your Account Manager if you have any query.

Credit

DIRK WIERSMA / SCIENCE PHOTO LIBRARY DIRK WIERSMA / SCIENCE PHOTO LIBRARY

Caption

A geode observed in thin section, photographed with transmitted, polarized light, reveals the details of the precipitation and crystallization of silica in a rock void. Geodes form when chalcedony (silica, SiO2) precipitates from liquids percolating inside an empty void or crack in a host rock. The peripheral layers here formed are amorphous to sub-crystalline silica, while the core is made up of crystalline quartz. Actual width is 44 mm.

Release details

Model release not required. Property release not required.

 {{ i.shot_duration ? i.shot_duration + ' ' : '' }}{{ i.shot_uhd ? '4K ' : i.hires ? 'HD ' : '' }}{{ i.spl_number }} R{{ i.license }}

  • Add to board
  • Similar {{ mediaType(i) }}