Every year Stanford's Department of Chemical and Systems Biology hosts an artist in residence for a week of creativity building. This year's resident artist, sculptor Alyson Shotz, took groups to a studio where, among other experiments, they encased various foods in molten glass. What you're looking at, then, is a slice of kiwi encased in glass.
After the groups finished in the glass studio, Shotz retired to Stanford to study their work under a microscope. More details are available in my colleague Rosanne Spector's Inside Stanford Medicine story from Monday.