International Year of Crystallography

Polarized light micrograph of liquid crystal
Liquid crystal visualized under polarized light
Polarized light micrograph
Karen Neill/LCI, Wellcome Images
CC BY-NC-ND 4.0

In celebration of "The International Year of Crystallography 2014", we'd like to point you to a favorite site for science images, Wellcome Images. This database contains over 150 historical and contemporary images of crystals, drawing on a variety of imaging techniques.

scanning electron micrograph of caffeine crystals
False-colored scanning electron micrograph of caffeine crystals
Annie Cavanagh and David McCarthy, Wellcome Images
2011
CC BY-NC-ND 4.0

"The International Year of Crystallography 2014 (IYCr2014) commemorates not only the centennial of X-ray diffraction, which allowed the detailed study of crystalline material, but also the 400th anniversary of Kepler’s observation in 1611 of the symmetrical form of ice crystals, which began the wider study of the role of symmetry in matter. "   [from the IYCr2014 website]

light microscopy of crystals of DNA protein
Crystals of a DNA repair protein from Serratia marscenscens
bound to DNA

Light microscopy
Bernard O'Hara & Renos Savva, Wellcome Images
2000-2002
CC BY-NC-ND 4.0