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PhotosPezzottaite - Dara-i-Pech pegmatite field, Chapa Dara District, Konar Province, Afghanistan
19th Aug 2014 12:15 UTCJosé Zendrera 🌟 Manager
To me, it looks like typical Afghan morganite with nice color.
There is not complementary info about this specie entry in his locality page. I imagine the author had analized this sample before to affirm its identity, would be very helpfull confirm this and to add this information to the mineral specie entry in his locality page to strengthen reliability of this data.
19th Aug 2014 13:18 UTCFerdinando Giovine
19th Aug 2014 17:05 UTCUwe Kolitsch Manager
19th Aug 2014 21:04 UTCJim Houran
I own this specimen, so I can get it analyzed to verify the species. However, the species is known (though rarely) from Afghanistan and Burma -- in both cases and to my knowledge the habit is not exactly like that found in Madagascar.
Cheers,
Jim
19th Aug 2014 21:08 UTCJim Houran
Thanks,
Jim
19th Aug 2014 21:55 UTCJosé Zendrera 🌟 Manager
Concerning locality, Paroon is not in the Kunar Valley but in the Paroon Valley in Nuristan Province:
http://www.mindat.org/loc-9019.html
http://en.wikipedia.org/wiki/Parun
19th Aug 2014 22:03 UTCJim Houran
Cheers,
Jim
19th Aug 2014 22:05 UTCSalvatore Natalizia
20th Aug 2014 06:25 UTCHarald Schillhammer Expert
-------------------------------------------------------
> However, the species is known
> (though rarely) from Afghanistan and Burma
To my knowledge, most Burmese specimens also have not been analysed. Those (from Momeik Township) with a similar (pinkish) color as yours from Afghanistan have proven to be just Cs-rich Beryl, but I have seen photos of a very few specimens with a deep almost orange color, but also those have not been analysed. Would be nice, though, to have Pezzottaite from Burma confirmed.
Cheers
Harry
20th Aug 2014 07:50 UTCUwe Kolitsch Manager
Info added to photo caption.
20th Aug 2014 07:52 UTCUwe Kolitsch Manager
Jim: Does it say so on the label?
20th Aug 2014 11:24 UTCJosé Zendrera 🌟 Manager
-------------------------------------------------------
> Josele, thanks for the correction... yes, this is supposedly the correct locality for pezzottaite: http://www.mindat.org/loc-68101.html
> Cheers,
> Jim
In Dewa Mine locality page, pezzottaite entry has a reference: "Lapis Extra (English) No. 7 (2005) p12"
In page 12 of mentioned Extra Lapis can read: "... A second location in the Dewa mine, Paroon Valley, Kunar, Nuristan, Afghanistan has now been confirmed (Laurs et al. 2003)"
(as said, Paroon Valley is not in Kunar)
Can someone amplify this information?
Which paper of Laurs et al. confirms pezzottaite in Dewa Mine?
20th Aug 2014 11:50 UTCJosé Zendrera 🌟 Manager
In a GIA paper http://www.gia.edu/Winter-2003-A2-Pezzottaite-Madagascar-Laurs (pag. 284) can read:
"... In addition to material from this locality, a sample of Cs-rich “morganite” from Afghanistan described by Hänni and Krzemnicki (2003) has now been recognized as pezzottaite (H. Hänni, pers. comm., 2003). ..."
As Hänni reference is a personal comunication, there is no way to track it...
20th Aug 2014 11:52 UTCOlav Revheim Manager
H. A. Hänni and M. S. Krzemnicki, “Caesium-rich morganite from Afghanistan and Madagascar,” Journal of Gemmology, Vol.28, No. 7, 2003, pp. 417–429) can be downloaded as a pdf from here:
link
This paper also includes microprobe data.
Olav
20th Aug 2014 11:55 UTCJosé Zendrera 🌟 Manager
20th Aug 2014 12:05 UTCOlav Revheim Manager
I have linked to a different paper than you have. The Hänni and Krzemnicki paper contains a full description of an Afghani sample, including a microprobe analysis, so it contains more than anecdotal evidence.
Olav
20th Aug 2014 12:17 UTCUwe Kolitsch Manager
20th Aug 2014 12:49 UTCJosé Zendrera 🌟 Manager
I think only an analisys will clarify this matter definitely...
20th Aug 2014 13:47 UTCJim Houran
Just to clarify, the locality of the Obodda specimen we are talking about here is not correctly listed. It is from Paroon, not Darra-i-Pech, as reported to me by Obodda himself.
Good news... arrangements for an analysis are underway. The plot thickens!
Thanks,
Jim
20th Aug 2014 14:09 UTCJosé Zendrera 🌟 Manager
Maybe I'm asking too many questions... If yes, forget it.
20th Aug 2014 14:47 UTCUwe Kolitsch Manager
Changed.
20th Aug 2014 14:54 UTCJim Houran
The dealer did not say it was from Dara-i-Pech. The dealer was Herb Obodda, who originally obtained the piece on a trip to Afghanistan. I asked him a long time ago about the locality, and he said he had no idea how the locality listed here ended up as it did. He then told me the correct locality (Paroon), which matches what we know about legitimate pezzottaite from Afghanistan. Obviously, the locality for this specimen (whatever it may turn out to be) needs to be changed to Paroon.
I obtained the specimen a couple years ago when Rob Lavinsky released the Obodda collection. The crystal will be analyzed soon at the U of A.
Hope this clarifies a bit.
Cheers,
Jim
20th Aug 2014 15:04 UTCJosé Zendrera 🌟 Manager
I'll be preparing my new excuse for when analysis confirms that it is indeed Pezzottaite...
20th Aug 2014 16:26 UTCJim Houran
-------------------------------------------------------
> Thank you for your patience Jim, my appologies for
> not having understood before.
>
> I'll be preparing my new excuse for when analysis
> confirms that it is indeed Pezzottaite...
Josele,
This is one of the most fun aspects of the hobby, isn't it?.... solving mineralogical mysteries. While I hope analysis confirms the assumed pezzottaite identification, I'll be the first one to say, "Oops...the ID was wrong."
This will be a very educational exercise!
Cheers,
Jim
20th Aug 2014 17:42 UTCMatteo Chinellato Expert
23rd Aug 2014 10:05 UTCMatteo Chinellato Expert
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Privacy Policy - Terms & Conditions - Contact Us / DMCA issues - Report a bug/vulnerability Current server date and time: May 9, 2024 23:03:49