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

From: Dean Miera <zilla237_at_meteoritecentral.com>
Date: Tue, 26 May 2009 21:51:01 -0600
Message-ID: <BAY117-W17AB18CF43FDB53BC836128B530_at_phx.gbl>

Hello Greg, Congrats On your awesome N.M. iron meteorite! Shes a beaut!
 
  I actually know the guy who found your N.M. Iron meteorite. The stories he has told me behind this find are very interesting to say the least. In fact we spoke again of this fall the last time we hunted together. There have been quite a few falls here in N.M. worthy of spending some serious adventure time on for sure!! Again congrats to you!
 
Dean
> From: gmhupe at htn.net
> To: meteorite-list at meteoritecentral.com
> Date: Tue, 26 May 2009 18:18:06 -0400
> 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
>
>
>
>
> ______________________________________________
> http://www.meteoritecentral.com
> Meteorite-list mailing list
> Meteorite-list at meteoritecentral.com
> http://six.pairlist.net/mailman/listinfo/meteorite-list
_________________________________________________________________
Hotmail? has ever-growing storage! Don?t worry about storage limits.
http://windowslive.com/Tutorial/Hotmail/Storage?ocid=TXT_TAGLM_WL_HM_Tutorial_Storage1_052009
Received on Tue 26 May 2009 11:51:01 PM PDT