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Hauyne from Afghanistan
https://gemologyonline.com/Forum/phpBB2/viewtopic.php?f=28&t=7691
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Author:  Jason [ Tue Feb 24, 2009 12:48 am ]
Post subject:  Hauyne from Afghanistan

I just got an email from intimate gems offering, among other things, a 1+ ct piece of Hauyne said to be from Afghanistan. Anyone privy to information about this find?

Jason

Author:  Barbra Voltaire, FGG [ Tue Feb 24, 2009 1:10 am ]
Post subject: 

The Spring 2008, G&G has a brief of hauyne from Afganistan (p.79)
The stones studied in the article were supplied by Intimate Gems. The gems had a green component not seen in the German material. Apparently the hauyne is associated with afghanite and occasionally misidentified as afghanite.
The strongest market for hauyne is Japan, according to the brief.

Author:  Jason [ Tue Feb 24, 2009 1:44 am ]
Post subject: 

Thanks Barbra. I noticed the green component in the pic they posted of the stone. Interesting.

Author:  Coyotegem [ Wed Mar 04, 2009 6:08 am ]
Post subject: 

Jason,
I also was offered Hauyne recently- a parcel of rough from a vendor in Pakistan.
I really don't know much (anything) about the stuff 'cept it's blue and rare. If you wouldn't mind, maybe you could post some links to pics/info on it or tell me more about it? Is it very valuable and sought after?

I declined the parcel because I already had spent far too much cash with said vendor and by that point I felt like I was getting fleeced. As far as it being a 'new find' I don't know where the old find was :smt102 but the parcel was 150 grams of mostly eye-clean... my guess is a lot it has been found and it's making it's way through many dealers' hands.


David

Author:  Barbra Voltaire, FGG [ Wed Mar 04, 2009 12:26 pm ]
Post subject: 

Check Tim's Report:
http://gemologyonline.com/Forum/phpBB2/ ... 06&start=0

Author:  Coyotegem [ Wed Mar 04, 2009 4:14 pm ]
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Thank you Barbra,
I guess next time I shouldn't look a gift-horse in the mouth... emailed vendor and his reply was that he sold it 5 mins after speaking to me. It was a very good price but wasn't as pretty as the stone in Tim's write up.

David

Author:  Tim [ Wed Mar 04, 2009 4:27 pm ]
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Quote:
The gems had a green component not seen in the German material


The Laacher See locality is said to produce fully green ones as well as clears and everything in between. Whether or not that's misidentified specimens or not I don't know, never seen/tested any.

It's the really strong saturated blues that bring in the big money.

I missed this thread when it was written, I must admit I'm very curious about the Afghan material...

Author:  Coyotegem [ Wed Mar 04, 2009 8:04 pm ]
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Tim Spauwen, FGA wrote:
It's the really strong saturated blues that bring in the big money.

I missed this thread when it was written, I must admit I'm very curious about the Afghan material...


Considering the quantity/quality offered to me there must be a fair amount of the Afghan material floating about... my connection is very small potatoes. I told him I might be interested in the future, so Tim if I get any good material and you still haven't found any for yourself I'll send you a couple.

David

Author:  anitame [ Wed Mar 04, 2009 10:14 pm ]
Post subject: 

This is the best German hauyne I have ever seen:

1.73 ct., Pala Gems

You'll need to scroll a bit more than halfway down the page. I can't even imagine how much it cost.

Author:  gem-n00b [ Thu Mar 05, 2009 2:32 pm ]
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Anita, I fixed your link, now it goes straight to the correct stone.

Author:  Tim [ Thu Mar 05, 2009 4:00 pm ]
Post subject: 

Coyotegem wrote:
Tim Spauwen, FGA wrote:
It's the really strong saturated blues that bring in the big money.

I missed this thread when it was written, I must admit I'm very curious about the Afghan material...


Considering the quantity/quality offered to me there must be a fair amount of the Afghan material floating about... my connection is very small potatoes. I told him I might be interested in the future, so Tim if I get any good material and you still haven't found any for yourself I'll send you a couple.

David


study samples are always welcome :mrgreen:

The weather is getting more pleasant here slowly but surely; I will be going to that quarry again soon and this time I will be looking for locals that can sell me some.

btw. did I ever mention that some samples (the cleaner darker blue ones) fluoresce pink in lwuv? I'm not sure what locktite will do but my best guess is that you will be able to pick a stabilized stone in a glimpse. I will try to get one of them as well so I can complete that story I started last year.

Author:  Gemsconnect [ Wed Apr 01, 2020 5:08 pm ]
Post subject:  Re: Hauyne from Afghanistan

Cristaux d Hauyne et Augite sur gangue.
Provenance Eifel.
Allemagne.
:)

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Author:  Stephen Challener [ Fri Apr 03, 2020 11:00 pm ]
Post subject:  Re: Hauyne from Afghanistan

I have one of the Afghan stones in my personal collection which I bought from a friend back when I was in high school iirc. The rough was sourced from Farooq. It is a really beautiful stone, not electric blue but an off-beat aqua. The friend I bought it from showed me the GnG article about the material, which was also my first exposure to GnG.

I've also seen specimen-grade stones from Afghanistan labeled hauyne for sale every now and then, though who knows until you have it and have tested it.

No question the German material is king, but it's always nice to have another source.

Author:  Barbra Voltaire, FGG [ Mon Apr 06, 2020 11:53 am ]
Post subject:  Re: Hauyne from Afghanistan

The chemistry of lazurite in Afhanistan is very similar to hauyne and often we find a transition.
[quote=Wiki"]Structure: Lazurite and hauyne seem to have the same structure and both are sulfate-dominant minerals.[9] Lazurite is a pigment (opalescent) and has a bright blue streak (especially as a component of the semiprecious stone lapis lazuli). Many hauynes have a white or pale blue streak and are translucent. The difference might be a consequence of the redox state (sulfate to sulfide ratio)" [/quote]

This is a specimen of lazurite from Afghanistan I purchased years ago:

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