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Agate. polarised light micrograph

Agate. polarised light micrograph

C019/6180

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Credit

ANTONIO ROMERO / SCIENCE PHOTO LIBRARY ANTONIO ROMERO / SCIENCE PHOTO LIBRARY

Caption

Agate. Polarized light micrograph of a thin section through an agate mineral. Layers of chalcedony (banded) surrounded by quartz crystals. Chalcedony is the amorphous or non-crystalline form of silica (silica dioxide). Quartz is the pure crystalline form of silica. Impurities cause coloured areas, with the pure quartz being colourless. Magnification: x3 when printed at 10 centimetres wide.

Release details

Model release not required. Property release not required.

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