[meteorite-list] Lots of Gold and Meteorites on Heritage Auctions
From: Robert Verish <bolidechaser_at_meteoritecentral.com>
Date: Thu, 2 Nov 2017 22:07:36 +0000 (UTC)
I had the honor and the pleasure (while they were temporarily in my possession)?of personally examining up-close some of the meteorites in this auction that are from Western Sahara.? I am no longer in possession of any of the meteorites in this auction.? All of these specimens from Western Sahara appear in the Meteoritical Bulletin where all of the coordinates,?masses (and the number of pieces) and the owners are listed.? All of the specimens from Western Sahara in this auction?can be considered the official main masses.?
For clarity, where I may have relevant experience or have information that is additional to what appears in the MBD or the auction description, I may feel compelled to share those facts (some of you may remember, this List was originally an educational, information-sharing?forum).? For instance:
I feel compelled to clarify the description for the La'gad specimen in this auction:
Where the description states, "this specimen exhibits an irregular exterior with no fusion crust", I would disagree and instead?add that the images depict a relict-fusion-crust where the?surface is smoothly curving, it represents the original ablated?exterior of the La'gad meteorite.? The only evidence remaining that this surface was once covered in glassy?fusion-crust is the iron-stained?palagonite clay, the end-product of devitrified glass.? This is not a carbonate, and it is distinct from the iron-stained caliche that is typically found in the crevices of most of the Lunar specimens from this locality.
The surface that was fusion-crusted?may be more apparent in this Randy Korotev image:
So, to all of you who have expressed an interest in Western Sahara meteorites, thank you for giving me an opportunity to write on this subject.
And, at the risk of sounding like?"David?S. Pumpkins"....,? "Any questions?"
On ?Wednesday?, ?November? ?01?, ?2017? ?05?:?23?:?41? ?PM, Luther Jackson via Meteorite-list <meteorite-list at meteoritecentral.com> wrote:
What?s your involvement in this auction Bob, just to be clear?
> On 11/1/17, Robert Verish via Meteorite-list
> <meteorite-list at meteoritecentral.com> wrote:
>> There is a Eucrite in this auction that may look familiar, and I don't mean
>> because it looks like Bierschinken.? It is NWA 7496 --
>> and here is where you have seen it before:
>> All photos by Randy L. Korotev
>> And it made an appearance in the textbook titled, "Asteroids":
>> http://bit.ly/2hvLJuD ? -- as well as, here:? http://bit.ly/2ioeRn5
>> And here, as well:? http://meteorites.superforum.fr/t6532p25-bonjour-a-tous
>> Although this "pin-up girl" of a Eucrite is a numbered NWA, it has published
>> GPS coordinates that show it was found in the country of Western Sahara.
>> Bob V.
>> On ?Tuesday?, ?October? ?24?, ?2017? ?06?:?49?:?48? ?PM, Robert Verish
>> <bolidechaser at yahoo.com> wrote:
>> I just received my copies of the Heritage Nature & Science Auction
>> catalog.? The photography is stunning.? There are so many items and the
>> images are so large, they had to make two separate catalogs:? one catalog
>> for all of the gold nuggets, gemstones, and fine minerals -- and in the
>> other, are the many meteorites.
>> Unlike most of the more recent auctions in which the Lunar and Martian
>> specimens are slices, there are some sizeable whole stones of planetary
>> material here.
>> You may want to add this to your calendar:
>> 2017 November 4 Nature & Science Signature Auction - Dallas? #5324
>> Although it pales in comparison to the hardcopy catalogue, there is an
>> online-version for your convenience at this link:
>> I found it to be an educational read.? I hope you find it to be enjoyable.
>> Bob V.
Received on Thu 02 Nov 2017 06:07:36 PM PDT