Tufa is a limestone formed when carbonate materials precipitate out of ambient temperature water. My previous post may have indicated solar deposits formed the structures in and on the edges of the lake, my mistake. The Tufa formations are mineral deposits, but not salt. Also, they’re protected like much anything else at natural parks is, that is, it’s illegal to take a sample with you when you leave. Or to climb on it, though that didn’t stop people from climbing for pictures. Oh well.
Tufa at Mono Lake in California. Shot on iPhone X.