“No Two Snowflakes the Same” Likely True, Research Reveals

Foto by By Nathan Myhrvold

Resource shows that actually there are 39 categories of solid precipitation (including 35 different kinds of snowflakes), which can be further subdivided into 121 subtypes.

A global classification of snow crystals, ice crystals, and solid precipitation based on observations from middle latitudes to polar regions was provide by Kikuchi, K., Kameda, T., Higuchi, K., & Yamashita, A. (2013) Source https://doi.org/10.1016/j.atmosres.2013.06.006