Gloria,
  I think this one might be modulated, you can clearly distinguish Bragg
and satellite reflections.

-j.


On Wed, 2015-04-01 at 07:06 -0500, Gloria Borgstahl wrote:
> Ah Ha!  
> 
> 
> drum roll
> 
> 
> A quasicrystal   !!!!!
> 
> On Wed, Apr 1, 2015 at 7:00 AM, Julia Griese <gri...@dbb.su.se> wrote:
>         This one appears to be of a similar age. It has a most
>         puzzling, but pretty pentagonal pattern (and a backstop).
>         Unfortunately Mosflm doesn't appear to support the image
>         format. 
>         
>         /Julia
>         
>         
>         
>         
>         On 01/04/15 13:08, Harry Powell wrote:
>         
>         > Hi Jacob 
>         > 
>         > 
>         > I noticed that there's no backstop shadow that might give a
>         > clue as to the direct beam position. 
>         > 
>         > 
>         > Do you know what wavelength radiation was used to bake this?
>         > 
>         > On 1 Apr 2015, at 12:03, Keller, Jacob wrote:
>         > 
>         > > Can anyone index this? It's got mostly split spots and a
>         > > strange diffuse scattering background....
>         > > 
>         > > JPK
>         > > 
>         > > *******************************************
>         > > Jacob Pearson Keller, PhD
>         > > Looger Lab/HHMI Janelia Research Campus
>         > > 19700 Helix Dr, Ashburn, VA 20147
>         > > email: kell...@janelia.hhmi.org
>         > > *******************************************
>         > > 
>         > > 
>         > > <roundmatzah.jpg>
>         > 
>         > Harry
>         > --
>         > Dr Harry Powell, MRC Laboratory of Molecular Biology,
>         > Francis Crick Avenue, Cambridge Biomedical Campus, Cambridge
>         > CB2 0QH
>         > Chairman of International Union of Crystallography
>         > Commission on Crystallographic Computing
>         > Chairman of European Crystallographic Association SIG9
>         > (Crystallographic Computing) 
>         > 
>         > 
>         > 
>         > 
>         > 
>         > 
>         > 
>         > 
>         > 
>         > 
>         > 
>         > 
>         > 
>         > 
>         > 
>         > 
>         > 
>         > 
>         > 
>         
>         
>         -- 
>         Dr. Julia Griese
>         Postdoctoral Researcher
>         Stockholm Center for Biomembrane Research
>         Department of Biochemistry and Biophysics
>         Stockholm University
>         106 91 Stockholm
>         Sweden
>         
>         phone: +46-(0)8-162 778
>         email: gri...@dbb.su.se
> 
> 

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