Hi Michael, I would recommend an alternative http://www.mitegen.com/products/micrort/micrort.shtml Traditional capillary is a pain to handle, unless you have a rock sized crystal. Good luck, Nian Huang On Mon, Nov 12, 2012 at 11:13 AM, Michael Roberts <[log in to unmask]>wrote: > Dear All, > > I would be interested to learn of other crystallographers' experience in > their use of glass capillaries for protein crystal growth and X-ray > diffraction clarity. > There are many types of glass available - quartz, soda glass, > borosilicate, etc. Are there specific types which people prefer for best > results overall? > > Best wishes, > > Michael Roberts >