Pores in 'heart-shaped' pyrite aggregate in clay
by Susanne Hemes, RWTH Aachen University, Aachen, Germany
Picture from SEM of Clay at 15.000-times magnification; visible pores down to 50 nm size.
Taken on 7
Submitted on 24 February 2011
Credit: Susanne Hemes (distributed via imaggeo.egu.eu)
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