Once I had ended up with beautiful snowflakes and crystalline layers, entirely by accident.
I had been washing a bowl in steaming hot water when I got interrupted. So, I did what everyone does when they cannot find an appropriate place for what they have on their hands.
I slapped the empty steaming bowl shut (it came with an airtight lid), put it away in the freezer, the nearest thing that looked like a cabinet with a door, and promptly forgot about it.
A few weeks later I found that both the bowl and the lid were covered with exquisite layers of crystals. I tried hard to photograph them, just did not come out right.
I might have said that I didn't realize snowflakes took photographs, but it turns out to be the work of Wilson "Snowflake" Bentley, so I guess in this case, they do.
I had been washing a bowl in steaming hot water when I got interrupted. So, I did what everyone does when they cannot find an appropriate place for what they have on their hands.
I slapped the empty steaming bowl shut (it came with an airtight lid), put it away in the freezer, the nearest thing that looked like a cabinet with a door, and promptly forgot about it.
A few weeks later I found that both the bowl and the lid were covered with exquisite layers of crystals. I tried hard to photograph them, just did not come out right.
I kept the crystals for many months.
https://www.youtube.com/watch?v=ao2Jfm35XeE
Temperature, moisture, pressure and maybe more variables are the parameters.