Table Salt (NaCl) thumbnail
Table Salt (NaCl)

Who knew something you eat every day could look so beautiful? Table salt (NaCl) imaged with polarization microscopy and a Wollaston or Nomarski prism. This image was taken by me at The George Washington University. 

[First-place winner, 2020 OPN Photo Contest]

—Erik A. Rodriguez, The George Washington University, U.S.A.