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Canada's Michael Smith Genome Sciences Centre (GSC) at BC Cancer is an international leader in genomics, proteomics and bioinformatics for precision medicine. By developing and deploying cutting-edge genome sequencing, computational and analytical technology, we are creating novel strategies to prevent and diagnose cancers and other diseases, uncovering new therapeutic targets and helping the world realize the social and economic benefits of genome science.
We are the Canadian node of the Earth Biogenome Project.

It's Snowing in my CPU — a Snowflake catalogue

Art is scence in love.
— E.F. Weisslitz

Go ahead, meet some snowflakes.

dorieda
mrinde
sicia
jusel
jonaph
sumery
leperroll

Somewhere in the world, it's snowing. But you don't need to go far—it's always snowing on this page. Explore light flurries, snowflake families and individual flakes. There are many unusual snowflakes and snowflake family 12 and family 46 are very interesting.

But don't settle for only pixel snowflakes—make an STL file and 3D print your own flakes!

Ad blockers may interfere with some flake images—the names of flakes can trigger ad filters.

And if after reading about my flakes you want more, get your frozen fix with Kenneth Libbrecht's excellent work and Paul Gallico's Snowflake.

This page uses code contributed by Alexander Pruss to generate an STL file for any of the flakes in the catalogue. The code is now hosted here to cross-origin requests.

authentically-grown flakes for your tree

Here is the 3D printed snowflake morptel. Yes, they all have names—snowflakes are people too.

Gravner-Griffeath Snowflake Simulation by Martin Krzywinski and Jake Lever / Martin Krzywinski @MKrzywinski mkweb.bcgsc.ca
The physical manifestation of the snowflake `morptel`.

Snowflake to STL conversion

It takes about 10–20 seconds to generate the STL file. You are about to generate STL for snowflake lilivia (shown below).

To generate STL for a different flake, browse to the flake's page and click the Generate STL file for 3D printing link in the section SNOWFLAKE FILES AND RESOURCES.

Martin Krzywinski @MKrzywinski mkweb.bcgsc.ca
Snowflake name
Snowflake code
Diameter mm
Minimum thickness mm
Maximum thickness mm
Tendril widening distance cells
Number of levels
Resolution reduction factor




© 1999–2022 Martin Krzywinski | contact | Canada's Michael Smith Genome Sciences CentreBC Cancer Research CenterBC CancerPHSA