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Researchers unearth a natural clay deposit with antibacterial activity.
Nodule of Oregon blue clay, coated with red clay and sulfur crystals encased in white clay.
Researcher Stephen Riser (left) drops a float into the Southern Ocean during a 2016-2017 cruise.
Scientist Lynda Williams imaging clay interactions with bacteria under a microscope.
Blue and white clay zones in the Oregon deposit, separated by a vein of rock containing sulfur.
Blue clay in an open pit mine near Crater Lake, Oregon.
Infectious disease physician Robin Patel looks at blue clay results in her lab at the Mayo Clinic.
South by Southwest community voting is from August 6-30
MULTIPLER team following a meeting at the German Research Foundation or DFG in Bonn Germany.