[Rockhounds] Cookeite

[DON HALTERMAN]

Looks like XRD would be the best bet.  The lithium and (OH) make positive ID by EDS difficult. I don't know what other minerals have similar formulae, but for a solid positive ID I'd get x-ray diffraction patterns coupled with chemistry by wavelength dispersive spectroscopy or perhaps Raman spectroscopy.



> On 10/04/2020 3:02 PM stu at arcrystalmine.com wrote:
> 
>  
> I have a pint jar full of what I believe to be yellow/gold color cookeite
> micro crystals from Jeffrey Quarry, near North Little Rock, Pulaski County,
> Arkansas.  Does anyone have the capability of testing the crystals to
> confirm it is cookeite and is there any value in the cookeite?
> 
>  
> 
> With Appreciation & Gratitude,
> 
> Stuart Schmitt
> 
> Clear Creek Crystals
> 
> 60 Mary's Eagle Trail
> 
> Mt Ida, AR 71957
> 
> (870) 867-2443
> 
>  <http://www.arcrystalmine.com/> www.arcrystalmine.com
> 
>  
> 
>  
> 
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