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Improving Mindat.orgGerasimovskite?

13th Feb 2016 00:56 UTCReiner Mielke Expert

http://www.mindat.org/photo-486269.html Gerasimovskite is supposed to be micaceous and pearly this looks earthy.

13th Feb 2016 03:42 UTCPavel Kartashov Manager

Yes, of course.:-D I am suppose, this is polylithionite.

13th Feb 2016 03:48 UTCReiner Mielke Expert

What it is? Not polylithionite.

13th Feb 2016 04:01 UTCPavel Kartashov Manager

At Hackmanite stok (pegmatite #62) all minerals of the pegmatie core (except aegirine) very often replaced by very specific porcellaneous hidden-crystaline polylithionite variety.

13th Feb 2016 08:53 UTCKnut Edvard Larsen Manager

Message sent on the photo

13th Feb 2016 11:07 UTCVik Vanrusselt Expert

Hello all,


Knut Edvard has brought this thread to my attention.


Are you saying that the pale tan species in my photo is Polylithionite ?


If so, I'll check for any possible Gerasimovskite on the same specimen.


What should I be looking for?


Thanks,


Vik

13th Feb 2016 12:39 UTCPavel Kartashov Manager

The most realistic gerasimovskite photo on mindat is this - http://www.mindat.org/photo-183148.html


On your specimen it completely absent - it is unknown at all in pegmatite №62.
 
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