These are some photos I've taken over the past few years, a combinations of things seen in the lab and things seen in nature. The sources of many of the patterns are still open questions for me!
Salt stains on a Chicago sidewalk
Mammatus clouds in Boulder, CO
Folds in banded gneiss
Expired SU-8 after spincoating (oops)
Lichtenberg figures (?) in ice slush
Lichen exhibiting front-like growth
Slush patterns on Lake Michigan
Saffman-Taylor fingers in butter
Stain from copper sulfate solutionÂ