[MSA-talk] New mineral description needed

Mariana Klementova klemari at fzu.cz
Wed Apr 27 02:26:41 EDT 2016

Hi Henry,

I can offer the electron diffraction approach. Our group is developing
tools for structure solution from electron diffraction tomography. We can
obtain structure from crystals as small as about 20nm. Of course, the
hydration might complicate thing a little. But recently we have become
interested in more challenging materials including hydrated minerals as we
have got four mineralogists in our group. So, if you could spare a little
bit of your sample we would be interested to try.



 Mariana Klementova
 Institute of Physics of the CAS, v.v.i.
 Cukrovarnicka 10
 CZ-162 00 Praha 6
 Czech Republic
 tel. : +420 - 220 318 470

On Tue, Apr 26, 2016 at 6:19 PM, Henry Barwood <hbarwood at troycable.net>

> There is a new hydrated iron phosphate mineral found at Girard, Burke
> County, Georgia that needs analysis and description. It was recognized (by
> me) as a new mineral 22 years ago and has been looked at by 4 separate
> groups without success. The problem is that the crystals, while well
> defined are simply too thin to yield adequate single crystal data for
> crystal structure analysis. Does anyone on the list have access to electron
> diffraction or another technique that might be able to solve this mineral?
> I would really like to see it described since it would represent the first
> mineral with a Georgia type locality. I have very few specimens of this
> left but would sacrifice 1-2 if anyone believes they have a reasonable
> possibility of success. Thanks.
> --
> Henry Barwood
> Professor, Earth Science
> Department of Chemistry and Physics
> Troy University
> Troy, Alabama 36082
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