From memory, I’d look at the ICSD first; I think it’s got lots of powder 
information.

From what I remember, CSD is entirely single crystal (though there might be 
some powder structures there), and is not what many people would call “publicly 
available”.

You may or may not have some luck looking at COD (the Crystallography Open 
Database, not the demersal or pelagic fish of the same name….)

How would you do it? Well, your googling skills are probably as good as mine, 
if not better.

Harry

> On 2 Dec 2019, at 09:51, Peer Mittl <mi...@bioc.uzh.ch> wrote:
> 
> Could someone please give me some advice on how to query a publicly available 
> powder diffraction database? Upon (protein) crystallization we always get 
> large spherulites of an inorganic compound and I would like to know what it 
> is. It should be possible to use the scattering angles of these spherulites 
> (its definitely not ice) to query a powder diffraction database. But which 
> database (e.g. CSD) and how?
> 
> All the best,
> Peer
> 
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