Preserving Snow Crystals

I'm not sure which technique they use but this person makes jewelry from snowflakes. They have videos showing their process, where they catch them on a tray and transfer them using a paintbrush to slide covers that are holding some chemical which capture their shape. Eyeballing it I think they're using the Formvar method.

https://www.preservedsnowflake.com/

https://youtube.com/@preservedsnowflakeco

Just yesterday I was watching a video from someone trying to make Formvar. It can make very thin layers that are transparent to electrons in an electron microscope. He needed to make 1,4-dioxane first, the solvent needed in its synthesis and apparently difficult to obtain from suppliers.

Neat! I travel for work a fair bit and saw a local craft sale in a mostly fly in northern community with this. The lady mentioned using super glue and then transferred into silver and gold jewelry. Success rate did not sound high for individual flakes but I guess the winter is long… try again.

"Leave the slide outside or in your freezer for a week or two until the glue hardens."

A week or two? That's a huge margin there

> It is possible to preserve newly fallen snow crystals, creating one's own snow crystal fossils.

Nitpick, but fossils are specifically records of life. Footprints left in petrified mud can be fossils. But a snowflake isn't alive, so a preserved snowflake can never be a fossil.