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Images: Minerals Made by Microbes

MIT-WHOI Joint Program graduate student Emily Estes works within the jumble of instruments in the Stanford Synchroton Radiation Lightsource, which she uses to analyze the composition and structure of minerals in her seafloor samples.
At the Stanford Synchrotron Radiation Lightsource, electrons diverted from the nearby linear accelerator enter the synchrotron's 737-foot circumference ring. A magnet bends them around the loop so that they emit a continuous beam of X-rays, which scientists use to analyze the chemical composition and structure of minerals. (Stanford Synchrotron Radiation Lightsource)
This electron microscope image shows lighter-colored rod-shaped bacteria and the darker mineral crystals that the bacteria are helping to create. The bacteria produce molecules that facilitate the synthesis of minerals, a process known as biomineralization. (Colleen Hansel, Woods Hole Oceanographic Institution)
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