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Bindheimite : Pb2Sb2O6O, Bournonite : PbCuSbS3

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Copyright © Rob Lavinsky & irocks.com
 
 
 
minID: F64-1VN

Bindheimite : Pb2Sb2O6O, Bournonite : PbCuSbS3

Copyright © Rob Lavinsky & irocks.com  - This image is copyrighted. Unauthorized reproduction prohibited.
Dimensions: 6 cm x 5.2 cm x 4.6 cm

6.0 x 5.2 x 4.6 cm. This is a very old specimen from the noted classics collection of Phil Scalisi, featuring floating crystals of bournonite replaced by the related lead antimony oxide-hydroxide species, bindheimite. The crystals are mostly doubly-terminated, and show classic bournonite form. Admittedly, "wolchite" isn't the most beautiful pseudomorph on the planet but it’s still an impressive piece for intellectual interest and for this old locality. I had only ever seen smears and broken bits of such crystals, and compared to them this is a kingly specimen. Ex. Harvard University Museum.


This photo has been shown 831 times
Photo added:11th Dec 2010
Dimensions:819x768px (0.63 megapixels)

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Discuss this Photo

PhotosBindheimite - Wölch, Frantschach-St Gertraud, Carinthia, Austria

9th May 2018 06:38 UTCChristian Auer Expert

This is a very nice and typical "wölchite" (oxyplumboromeite) from the Hüttenberg mining district https://www.mindat.org/gallery.php?loc=4376&min=741


I`ve been collecting at the Wölch and know these "wölchite" there are not that large and are even heavier oxidized https://www.mindat.org/photo-512948.html

11th May 2018 01:32 UTCMartin Rich Expert

I would also say this specimen is from Hüttenberg.

11th May 2018 17:21 UTCUwe Kolitsch Manager

Fixed. (Interesting that no child photo of an old label was uploaded ...)

11th May 2018 22:34 UTCKeith Compton Manager

I'm confused

Christian has indicated that the Lavinsky piece is typical from the Huttenberg mining district and his personal photo is listed as from

Wölch, Frantschach-St Gertraud, Carinthia, Austria.

Which is what Lavinsky had indicated for his specimen.

Now Lavinsky's piece has been moved to Huttenberg? but Christian's is at Wölch, Frantschach-St Gertraud, Carinthia, Austria.


I think that Lavinsky's should be moved back to its original Wölch, Frantschach-St Gertraud, Carinthia, Austria

I note that Dana listed Wolchite from Wölch.

12th May 2018 12:41 UTCReiner Mielke Expert

Hello Keith,


Christian's personal photo was to show the difference between the Wölch material and the Huttenberg specimens not to show or suggest they are the same. Lavinsky's specimen looks like Huttenberg material not Wölch.

12th May 2018 12:47 UTCKeith Compton Manager

Reiner


Fair enough


I have noted that Lavinsky has been selling off some very old European minerals so it may have an old provenance and thus may reflect earlier finds.

At least a note should be added that it may be but ... etc


Many localities produce material over a very long period of time but recent finds from them bear no resemblance to older material.


But I have never seen this material before so I can't comment in that regard.

Cheers

12th May 2018 17:31 UTCChristian Auer Expert

Keith, I can assure you that I`ve a bit of knowledge about Austrian ore minerals and haven`t seen any such stuff even in old museum collections.

You can completely distinguish bournonite from the Benedicti shaft, Wölch and those of the Hüttenberg Erzberg.

The first ones are absolutely rare and when you don`t find one yourself, you don`t have one. The second occur (if you are lucky) at a mineral show from time to time.


There`s the theory in science to accept always the most logic possibility. How should come an absoluely rarity that noone has seen here to an American dealer (who had several other mislabeled specimen by the way).

13th May 2018 07:25 UTCKeith Compton Manager

Hi Christian


As I said - I haven't seen the material before - so just had to ask the question and I was confused by the change made.

Me and my old age no doubt.


More than happy to defer to your knowledge of the area.


And yes I've seen many mislabeled from that dealer source, so it wouldn't be the first time ! All dealers make mistakes with labels, just as many collectors do as well.


Cheers
 
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