Crystals
http://www.caseciw.org/first_light_case/horn/lessons/crystals/crystals.html

Protein Crystals in Space program --- Marshall Space Flight Center, University of California, Irvine and NASA

http://spacecrystal.nasa.gov/ http://florida-protein-crystals-in-space.org/ http://science.nasa.gov/msl1/pcg_why.htm
http://science.nasa.gov/ssl/msad/pcg/ http://www-structure.llnl.gov/Xray/tutorial/Crystal_sym.htm Build a wire model of a protein from its crystal structure

 
polyhedra
http://www.georgehart.com/
virtual-polyhedra/vp.html

X-Ray diffraction images of DNA
http://mrsec.wisc.edu/edetc/cineplex/
DNA/index.html

 images of minerals
http://greatsouth.net/minmenu.html
images of protein crystals
http://www-structure.llnl.gov/
crystals.html

Print out models from these pages
http://mathforum.org/alejandre/workshops/toc.crystal.html

for applets of crystal forms http://www.iumsc.indiana.edu/morphology/
cubic.html

 

movies of crystals with sketches of the changing
aspects as they rotate
http://chemed.chem.purdue.edu/
genchem/topicreview/bp/ch13/unitcellframe.html
from molecule to crystal
http://www-structure.llnl.gov/
Xray/tutorial/Crystal_sym.htm

lattice cells
http://www.uwgb.edu/
dutchs/symmetry/bravais.htm

pdb of crystal structures of various elements
http://www.molecules.org/elements.html