Two-level nature of branched crystals

December 11th, 2016
The common branched crystal looks like a paper cut-out, but actually has a complex 3-D nature. One aspect of this nature, which I have alluded to in prior posts, is the two-level structure: What appears to be happening on one plane, is actually… more »

How some snow crystals hide their droplet origin

December 5th, 2016
Look closely at the center of a snow crystal. In many, or most, you will often not find a droplet center as we described in the previous post. Indeed, for the columnar crystals, you may never see a droplet center. As an example, look at the center of… more »

How some snow-crystal centers retain their droplet origin

November 22nd, 2016
If you zoom in on the center of some snow crystals, you may see a small circle, or near circle. In some cases, the crystal will have other circles of similar size as well, but the one to focus on is the one at the exact center of the crystal. Here marks… more »

How the water molecules make corner pockets

November 11th, 2016
As I mentioned in my previous post, the formation of corner pockets on ice crystals is inexplicable by the standard theory of snow-crystal growth. Akira Yamashita had recently proposed a mechanism for corner pockets, though he had applied it to a… more »

Akira's Corner Pockets

May 10th, 2016
The evanescent snow crystal appears out of nowhere The lines and boundaries on its faces tell a story a story of its birth and life But before it all vanishes does anyone hear the story?   A few years back, a correspondent of mine, Professor Akira… more »

Story of Snow - Simplified Chinese edition

April 6th, 2016
Story of Snow - Simplified Chinese edition
A few copies of the simplified Chinese Edition of The Story of Snow arrived at my house a few days ago - here's what it looks like: The Story of Snow was originally published over 6 years ago (October, 2009) - so it's great to see continued developments… more »

100 Snowflake Photos

January 27th, 2015
I recently put together a new collection of 100 snowflake photos. The gallery ranges from some of the first photos I made (on film) in 1999 through photos made in early 2015. If you are interested in seeing more snowflake photos, follow this link: 100… more »

More 2015 Snow Crystals

January 27th, 2015
A few more snowflakes from recent days (January, 2015)... click the images for much larger files on flickr. Note - to keep from cluttering the blog here, I am just adding new images as I take and process them. So stop back to see new stuff! -- Mark C.… more »

January 2015 Snow Crystals

January 6th, 2015
At long last a snow that produced some intact crystals... Here are two from this afternoon, January 6, 2015 (click on the images for much larger files.) Hopefully, more will be coming! Mark C. more »

Standard P1a Hexagonal Crystal, Front and Side

December 19th, 2014
It didn't start so symmetrical, but became so as it grew: This, the left crystal of the pair described two posts below, grew much more slowly on its basal faces (front & back in the left image). The way it grew, and its big difference with the crystal… more »