[meteorite-list] Jbilet Winselwan

From: Michael Farmer <mike_at_meteoritecentral.com>
Date: Wed, 21 Aug 2013 09:02:23 -0700
Message-ID: <0F2EB422-3C06-4CA0-8280-131A41B74C1D_at_meteoriteguy.com>

It has a great name, worthy of such a fresh and rare type. One of the freshest cm2 meteorites I've seen, many pieces have velvety black crust some flow lines even. It is very fragile and most pieces shattered into fragments. Wind and sand did their work on exposed surfaces which polished them up. I actually wire saw cut some pieces and the interior is gorgeous.
This is a must have for any carbonaceous collector.
Michael Farmer

Sent from my iPhone

On Aug 21, 2013, at 8:58 AM, "Galactic Stone & Ironworks" <meteoritemike at gmail.com> wrote:

> Martin, you beat me by about 5 minutes! :)
>
> List, this must be a wonderful CM2, because it garnered two
> announcements in five minutes. :)
>
> Count me in as officially on the lookout for some small crumbs of this
> one - contact me off-list if you have some available.
>
> Best regards,
>
> MikeG
>
> --
> -------------------------------------------------------------
> Web - http://www.galactic-stone.com
> Facebook - http://www.facebook.com/galacticstone
> Twitter - http://twitter.com/GalacticStone
> Pinterest - http://pinterest.com/galacticstone
> -------------------------------------------------------------
>
>
>
> On 8/21/13, Michael Farmer <mike at meteoriteguy.com> wrote:
>> I have plenty of it. Great fresh CM2.
>> For sale now. Fragments for .1 gram up to ~60 grams.
>> Michael Farmer
>>
>> Sent from my iPhone
>>
>> On Aug 21, 2013, at 8:49 AM, "karmaka" <karmaka-meteorites at t-online.de>
>> wrote:
>>
>>> Dear list members,
>>>
>>>
>>> Jbilet Winselwan (CM2)
>>>
>>> is official now:
>>>
>>> http://www.lpi.usra.edu/meteor/metbull.php?code=57788
>>>
>>>
>>>
>>> Jbilet Winselwan 26?40.044?N, 11?40.637?W
>>>
>>> Morocco/Western Sahara
>>>
>>> Found: 24 May 2013
>>>
>>> Classification: Carbonaceous chondrite (CM2)
>>>
>>> History: (H. Chennaoui Aoudjehane, M. Aoudjehane, A. Laroussi, A.
>>> Bouferra) In early June 2013, A. Bouferra, a meteorite hunter from Smara,
>>> reported a new carbonaceous chondrite that had been found close to Smara.
>>> Due to its proximity to Smara (7 km), many meteorite hunters visited the
>>> area in the summer of 2013.
>>>
>>> Physical characteristics: Total mass is estimated about 6 kg, with small
>>> and complete pieces between 3 and 10 g, a few medium-sized pieces 10 to
>>> 200 g and rare big pieces >200 g. The largest sample is ~900 g. Fresh
>>> looking fusion is crust present on many fragments. Some fragments are wind
>>> ablated. Some cracks contain secondary, crystalline alteration products.
>>> Interior of stones is black and peppered with chondrules.
>>>
>>> Petrography: (R. Hewins, MNHNP, L Garvie, ASU). The meteorite contains
>>> chondrules and fragments of Types I and II. These include BO-PO, formerly
>>> metal-rich, and olivine-pyroxene Type I chondrules. Type II chondrules
>>> with forsterite relict grains are present. There are regions packed with
>>> chondrule material and coarse PCP, and zones with scattered chondrule
>>> material in fine-grained matrix. Chondrule sizes range up to 1.2 mm,
>>> though most are around 200 ?m. A few CAIs are 800 ?m. Powder x-ray
>>> diffraction shows a strong 0.7 nm peak for serpentines, a broad but weaker
>>> peak around 1.3 nm corresponding to smectites, and a weak broad peak
>>> consistent with tochilinite.
>>>
>>> Geochemistry: (R. Hewins, MNHNP) Olivine is Fa0.98?0.44 and Fa25-40.
>>> Pyroxene is Fs2.6?1.5 and Fs40-61. Rare kamacite with 5.8 wt% Ni is
>>> present. (P. Cartigny, IPGP) The oxygen isotopic compositions of two
>>> pieces were determined as ?18O 3.811?0.09 and 5.851?0.016, ?17O
>>> -2.446?0.040 and -0.601?0.026, respectively. ?17O values are -4.441 and
>>> -3.663, mean -4.052.
>>>
>>> Classification: The oxygen isotope compositions, petrography and mineral
>>> compositions are all consistent with CM2
>>>
>>> Specimens: 17.8 g MNHNP, 17.4 g FSAC provided by L. Labenne, 20 g UNM
>>> provided by G. Fujihara, 122 g ASU provided by Farmer. Other collection
>>> masses include: Farmer 2.6 kg, Labenne 1.6 kg, T. Jakobowski 512 g, G.
>>> Fujihara 358 g, M. Ouzillou 173 g.
>>>
>>> Best regards
>>>
>>> Martin
>>>
>>>
>>> ----------------------------------------------------------------
>>> Postfach fast voll? Jetzt kostenlos E-Mail Adresse _at_t-online.de sichern
>>> und endlich Platz f?r tausende Mails haben.
>>> http://www.t-online.de/email-kostenlos
>>>
>>>
>>> ______________________________________________
>>>
>>> Visit the Archives at http://www.meteorite-list-archives.com
>>> Meteorite-list mailing list
>>> Meteorite-list at meteoritecentral.com
>>> http://six.pairlist.net/mailman/listinfo/meteorite-list
>> ______________________________________________
>>
>> Visit the Archives at http://www.meteorite-list-archives.com
>> Meteorite-list mailing list
>> Meteorite-list at meteoritecentral.com
>> http://six.pairlist.net/mailman/listinfo/meteorite-list
>>
Received on Wed 21 Aug 2013 12:02:23 PM PDT