[meteorite-list] NEW Ocate, NM Iron Classification & Specimens - AD

From: Fries, Marc D <marc.d.fries_at_meteoritecentral.com>
Date: Tue, 26 May 2009 16:31:52 -0700
Message-ID: <C641C9F8.8679%Marc.D.Fries_at_jpl.nasa.gov>

Rats; 1986 is outside the window for retrieving archived weather radar data.
I'd LOVE to see what an iron meteorite fall "looks like" on radar!

Congrats on a magnificent new meteorite!

Cheers,
MDF


On 5/26/09 4:27 PM, "Ruben Garcia" <meteoritemall at yahoo.com> wrote:

>
>
> Wow Greg,
> That's a cool meteorite!!? I wish I'd have found it.....
> ?Ruben Garcia
> Phoenix, Arizona
> My Website: http://www.Mr-Meteorite.Net
> My Articles: http://www.meteorite.com/blog/
> My Videos: http://www.youtube.com/profile_videos?user=meteorfright=v
> <http://www.youtube.com/profile_videos?user=meteorfright&p=v>
>
>
>
> ----- Original Message ----
> From: Greg Hupe <gmhupe at htn.net>
> To: meteorite-list at meteoritecentral.com
> Sent: Tuesday, May 26, 2009 3:18:06 PM
> Subject: [meteorite-list] NEW Ocate, NM Iron Classification & Specimens - AD
>
> Dear List Members,
>
> I would like to announce a newly-approved iron meteorite found in New Mexico
> in 1986 and has just been approved. It is a IAB-MG (Main Group), coarse
> ochtahedrite and is named "Ocate" after the nearest town to where it was
> found. It will be in the online database soon and will be published in MB96
> (Sept, issue MaPS). It wasn't until 2008 that they finder approached me with
> the single 6.4kg stone that the classification process began. I went to the
> find site last fall with the person who found it to take GPS coordinates,
> photograph the area and to hunt for more if there were any to be found. We
> didn't have much time to hunt at that time so we did not find any others.
>
> Here are a couple of links to give you an idea of how nice Ocate is (see all
> available specimens below classification below). This was cut and prepared by
> one of the best meteorite craftsman in the business!
>
> Polished and etched face of a 314g complete slice:
> http://www.lunarrock.com/ocate/specimens/dsc00002.jpg
> Ocate, New Mexico sign:
> http://www.lunarrock.com/ocate/OcateSign.jpg
> The find site of the 6.4kg Ocate iron:
> http://www.lunarrock.com/ocate/findsite.jpg
>
> Getting to the find site is treacherous and a 4-wheel drive vehicle with high
> clearance is required! It took us about three hours after leaving the paved
> road to get to the site up the mountain on a road that was more like a
> crater-ridden trail with large boulders in most places and swampy mud in
> others. To successfully hunt the site would require camping for a week, there
> is no way to drive up and down the mountain each day and get enough hunting
> hours in to make it worthwhile. There are also lots of elk hunters during
> hunting season so anyone who wants to give it a go, be careful!
>
> Submitted and approved classification for "Ocate":
> Ocate 36? 17.72' N, 105? 2.90' W
>
> Mora County, New Mexico
>
> Find: 1986
>
> Iron (IAB-MG), coarse octahedrite
>
>
>
> History:? This single 6.4kg mass was found by a local New Mexico hunter in
> 1986.? Knowing it was different from the surrounding rocks and had an odd
> appearance (the face of a bear), the hunter took it home and set it aside with
> an odd assortment of 'collectibles' while hunting and mountaineering over
> decades in the New Mexico area.? The owner contacted G. Hupe in May 2008 for
> verification of the find, which was confirmed by study of the type sample at
> the University of Alberta.
>
> Physical characteristics:? A single stone weighing 6402 grams with virtually
> no apparent fusion crust, yet also lacking progressed terrestrial alteration,
> which contributes towards its dark brown metallic appearance with well defined
> regmaglypts.
>
> Petrography: (C. Herd, N. Bruemmer, UAb) A 5 x 7 cm polished and etched slab
> reveals Widmanst?tten pattern with an average bandwidth of 1.4 ? 0.2 mm, few
> areas of plessite, and numerous inclusions.? A 1 cm ellipsoidal graphite
> nodule and several smaller inclusions of graphite, troilite and schreibersite
> are associated with polygonal kamacite on one portion of the slab. Smaller,
> mm-scale elongate inclusions of troilite are oriented parallel to kamacite
> lamellae where the Widmanst?tten is better developed. Terrestrial oxides
> decorate fractures within a few mm of the exterior surface.
>
> Geochemistry: Bulk Composition: INAA data (J. Duke, UAb): Ni = 6.99 ? 0.05
> wt%, Co = 0.466 ? 0.004 wt%, Ga = 71.9 ? 0.3 ?g/g, Ge = 271 ? 6 ?g/g, Ir =
> 2.25 ? 0.04 ?g/g, Au = 1.60 ? 0.03 ?g/g, As = 15.2 ? 0.3 ?g/g, Cu = 119 ? 11
> ?g/g, W = 0.87 ? 0.08 ?g/g, Re = 0.22 ? 0.02 ?g/g (uncertainties 1s, 68%
> confidence level).
>
> Classification: Iron meteorite, IAB main group, coarse octahedrite, minimal
> shock, minimal weathering.
>
> Type specimens: 97.58 g slab and a 3.2 g interior piece, UAb, main mass, G.
> Hupe.
>
>
>
>
> I have only 12 specimens out of 15 that are available, here is the list which
> also shows the thickness of each piece:
>
> Ocate, New Mexico IAB-MG iron meteorite
> 910g end cut
> http://www.lunarrock.com/ocate/specimens/nm910a.jpg
> http://www.lunarrock.com/ocate/specimens/nm910b.jpg
>
> 322.6g cs 4mm thick
> http://www.lunarrock.com/ocate/specimens/dsc00001.jpg
>
> 314g cs 4mm
> http://www.lunarrock.com/ocate/specimens/dsc00002.jpg
>
> 211.6g cs 3.5mm
> http://www.lunarrock.com/ocate/specimens/dsc00003.jpg
>
> 208.2g cs 4mm
> http://www.lunarrock.com/ocate/specimens/dsc00004.jpg
>
> 191g cs 4mm
> http://www.lunarrock.com/ocate/specimens/dsc00005.jpg
>
> 168.6g cs 2.5mm
> http://www.lunarrock.com/ocate/specimens/dsc00006.jpg
>
> 163.8g cs 2.5mm
> http://www.lunarrock.com/ocate/specimens/dsc00007.jpg
>
> 162.9g ps 6.5mm
> http://www.lunarrock.com/ocate/specimens/dsc00008.jpg
>
> 162.8g cs 3.5mm
> http://www.lunarrock.com/ocate/specimens/dsc00009.jpg
>
> 130g ps 5-7mm
> http://www.lunarrock.com/ocate/specimens/dsc00010.jpg
>
> 4.5g ps (unpolished) 5mm
> http://www.lunarrock.com/ocate/specimens/dsc00011.jpg
> cs - complete slice
> ps - part slice
>
> I am asking just $4.00/g plus shipping, so if you are interested, please
> contact me Off-List. Thank you!
>
> In addition to these beautiful Ocate specimens, I have another batch of eBay
> auctions ending tomorrow (Wednesday, May 27th). Many are still at just 99
> cents, so more excellent deals will be had this week by bidding with me,
> NaturesVault. Click here for my current eBay auctions:
> http://search.ebay.com/_W0QQsassZnaturesvault
>
> Best regards,
> Greg
>
> ====================
> Greg Hupe
> The Hupe Collection
> NaturesVault (eBay)
> gmhupe at htn.net
> www.LunarRock.com
> IMCA 3163
> ====================
> Click here for my current eBay auctions:
> http://search.ebay.com/_W0QQsassZnaturesvault
>
>
>
>
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Received on Tue 26 May 2009 07:31:52 PM PDT