[meteorite-list] Fwd: Andasite Meteorites? Please have a look...

[cdtucson at cox.net]

Bill,
You probably already saw the preliminary report on this meteorite. see link;

http://www.lpi.usra.edu/meetings/lpsc2008/pdf/2215.pdf

But as stated this thing is 75% oligoclase. and low in iron.

Interesting because James Days says below;  " What is weird is the high Si, low Fe composition of the rock."
Your rock is the same 75% as his and also both have very low iron. 

This rock turned out to be Brachinite based on O-isotopes in spite of the fact that it looks nothing like a typical Brachinite. 
maybe you have another one of these. 

Have you had a thin section made yet? 
Using Days words, 
It would be Weird if a thin section matched this one? 
Good luck to you.
Carl



--
Carl or Debbie Esparza
Meteoritemax


---- Bill Hall <meteoritics at gmail.com> wrote: 
> ---------- Forwarded message ----------
> From: Bill Hall <meteoritics at gmail.com>
> Date: Wed, Jun 23, 2010 at 3:01 AM
> Subject: Andasite Meteorites? Please have a look...
> To: meteorite-list at meteoritecentral.com, Dale Cruikshank
> <Dale.P.Cruikshank at nasa.gov>, dcruikshank at mail.arc.nasa.gov, Edwin
> Thompson <etmeteorites at hotmail.com>, Galactic Stone & Ironworks
> <meteoritemike at gmail.com>, Guy Consolmagno <brother_guy at mac.com>,
> Impactika <impactika at aol.com>, info at spacerocksuk.com, Jeff Kuyken
> <info at meteorites.com.au>, josepguggiari at hotmail.com, M come Meteorite
> Meteorites <mcomemeteorite2004 at yahoo.it>, MeteorHntr at aol.com,
> meteoriteguy at yahoo.com, meteoritemall at yahoo.com,
> raremeteorites at yahoo.com, robert mcgown <mcgownrobert at gmail.com>,
> Timothy Heitz <Midwest at meteorman.org>
> 
> 
> Hello fellow meteorite enthusiasts,
> 
> If there are any people who are  really really good with meteorites, I
> could use your help. This stone has been an enigma for the past few
> years. It was purchased from Mohamed Sbai,  At Inn Suites in Tucson
> 2008. It is supposed to be from Dofar Oman. The ICPMS tests done at
> Actlabs indicate a close to Earth composition ( but it has strange
> anomalies). I cant seem to send attachments to the list or I would
> include the file.
> 
> The basics are:  SiO2 is 75.53%
>                          Al203 is  11.78%
>                          FE203 is 2.93%
>                          MnO is .047%
>                          MgO is .12%
>                          CaO is .34%
>                          Na2O is 3.87%
>                          K2O is 4.09%
>                          TIO2 is .129%
>                          P205 is .02
>                          LOl is .58
>                          Ni is 3110 ppm
> 
> 
> 
> please click on the planetary album to see photos. Remember to click
> on the photo and if you point your curser near the top of the photo
> you can choose to zoom
> in...........http://s680.photobucket.com/home/meteoritepictures
> 
>  Please click on this link to see An article about Earth like
> meteorites.......http://www.newsdesk.umd.edu/scitech/release.cfm?ArticleID=1812
> 
> I sent this to James Day....
> 
> Hello James
>                  Are you one of the scientists who worked on the
> andesite meteorite? If so I need to talk with you please. I believe I
> have one. I have thousands of meteorites but nothing like this. This
> was recovered in Dofar Oman. I will attach a photo, and I also have
> ICPMS data if you care to look. Please help me with this........
> #1 this stone was purchased in Tucson in 2008 from Mohamed Sbai, a
> supplier of Lunar and Martian meteorites. It is from Dhofar region of
> Oman, and weighs 516 grams, and aprox. 4'' in diameter
> #2 This stone is Brecciated and has white clasts. Clasts show no sign
> of erosion with sharp edges
> #3 This stone has regmaglypts
> #4 This stone has small pits from micro meteorite impacts
> #5 This stone has  chondrules and found 1 with metal rim
> #6 This stone has VERY TINY metal flakes inside, not very many, but
> they are there. It is VERY weekly magnetic
> #7 This stone has no, or very thin, waxy, fusion crust with a green
> tint to it. Surface has a FEW small vesicles
> #8 This stone has been visually examined by several geologists,
> meteorite dealers, 1 physicist, and a Representative from the Cascadia
> Meteorite Laboratory, and the consensus is that it is for sure a
> meteorite, but a really unusual one.
> 
>                                                         Thanks, Bill Hall
> 
> Here is James Days E-Mail back to me after seeing the test results..
> 
> Hi Bill,
> I was indeed the lead on the GRA project you are referring to - thanks
> for contacting me.
> Certainly, the sample you has is most intriguing and a bizarre
> composition. As you likely know, the elevated Pb and Ba
> are likely desert weathering, and nothing to be too concerned with.
> What is weird is the high Si, low Fe composition of the rock.
> What was the major- and trace-element measurements conducted on? A
> clast? A portion of the bulk rock?
> Cheers,
> James
> 
> 
> Also see   http://www.bccmeteorites.com/pigeonholing.htm
> 
> - Show quoted text -
> 
> 
> So What do you think??
> 
> Do I have a very rare meteorite, or a$1500 paper weight ???
> 
>        Any advice would be appreciated.
>                                                            Bill Hall,
> Bend Oregon,  541-419-2210
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