[meteorite-list] Rainbow Fusion crust

From: Alexander Seidel <gsac_at_meteoritecentral.com>
Date: Thu, 21 Jul 2011 21:10:56 +0200
Message-ID: <20110721191056.205190_at_gmx.net>

Beer makes the mind clear! That is: if you don?t overdose
it, of course!! And if you prefer the German or Czech brands
with the brewing traditions of past centuries, w/o chemistry...

:-)

Alex
Berlin/Germany


-------- Original-Nachricht --------
> Datum: Thu, 21 Jul 2011 20:28:15 +0200
> Von: "Matthias B?rmann" <majbaermann at web.de>
> An: "Martin Altmann" <altmann at meteorite-martin.de>, meteorite-list at meteoritecentral.com
> Betreff: Re: [meteorite-list] Rainbow Fusion crust

>
> Martin, we all know that Bavarians - and you C'Heirs are at least half
> Bavarian - use to wash all new things after buying them first with beer.
> Dark, strong Bavarian beer from old monastery breweries. And ritually they
> clean parallely also themselves, inside, with this beer. So whether the
> shimmering and glimmering rainbow is an subjective or objective effect, is
> still uncertain. But it is.
>
> Just my *hicks* two beers,
> Matthias
>
> ----- Original Message -----
> From: "Martin Altmann" <altmann at meteorite-martin.de>
> To: <meteorite-list at meteoritecentral.com>
> Sent: Thursday, July 21, 2011 7:39 PM
> Subject: Re: [meteorite-list] Rainbow Fusion crust
>
>
> Just some hours ago,
> list-member Stephan Kambach sent me a picture of a Murchison individual,
> showing such a rainbow effect.
>
> Best!
> Martin
>
> -----Urspr?ngliche Nachricht-----
> Von: meteorite-list-bounces at meteoritecentral.com
> [mailto:meteorite-list-bounces at meteoritecentral.com] Im Auftrag von Mike
> Bandli
> Gesendet: Donnerstag, 21. Juli 2011 19:21
> An: 'Gary Fujihara'; 'Marc Fries'
> Cc: meteorite-list at meteoritecentral.com
> Betreff: Re: [meteorite-list] Rainbow Fusion crust
>
> I've seen this "rainbow effect" in the fusion crust of a few specimens in
> my
> life including Murchison, Ash Creek, and Buzzard Coulee. Jim Strope has a
> great example of Murchison with this coloration in the crust here:
>
> http://catchafallingstar.com/murchison723i.JPG
>
> The complete page:
>
> http://catchafallingstar.com/murchison723.htm
>
> Very interesting. I would love to know what causes it.
>
> ----------------------------------------------
> Mike Bandli
> Historic Meteorites
> www.HistoricMeteorites.com
> and join us on Facebook:
> www.facebook.com/Meteorites1
> IMCA #5765
> -----------------------------------------------
>
>
> -----Original Message-----
> From: meteorite-list-bounces at meteoritecentral.com
> [mailto:meteorite-list-bounces at meteoritecentral.com] On Behalf Of Gary
> Fujihara
> Sent: Thursday, July 21, 2011 10:06 AM
> To: Marc Fries
> Cc: meteorite-list at meteoritecentral.com
> Subject: Re: [meteorite-list] AD: Special: Truly baffling & sensational
> Howardite - NWA 6709 - absolutely stunning and very fresh.
>
> Great observation Marc. Iridescence is common on many pahoehoe lava flows
> on the Big Island, and is quite remarkable to see.
>
> Sent from Gary's iPhone
>
> On Jul 21, 2011, at 6:53 AM, Marc Fries <mfries8 at hotmail.com> wrote:
>
> > Mild oxidation of silicate glass (fusion crust in this case) can produce
> a
> rainbow effect, too. I've seen this in basalts in the field. I think it
> is
> from a sheen of iron oxides created as the iron and/or sulfide weathers
> out.
> >
> > Cheers,
> > Marc Fries
> >
> > On 7/21/11 1:13 AM, Aubrey Whymark wrote:
> >> Hi
> >>
> >> The rainbow colour looks like oil to me. Maybe someone has used oil or
> WD40 to clean it. I sometimes encounter 'rainbow' tektites and the guys
> want
> extra because of it - in reality it is due to oil contamination, probably
> from the mining operations.
> >>
> >> Regards, Aubrey
> >> www.tektites.co.uk
> >>
> >>
> >>
> >> --- On Thu, 21/7/11, Martin Altmann<altmann at meteorite-martin.de>
> wrote:
> >>
> >>> From: Martin Altmann<altmann at meteorite-martin.de>
> >>> Subject: Re: [meteorite-list] AD: Special: Truly baffling&
> sensational
> Howardite - NWA 6709 - absolutely stunning and very fresh.
> >>> To: meteorite-list at meteoritecentral.com
> >>> Date: Thursday, 21 July, 2011, 0:33
> >>> Hi Mike,
> >>>
> >>> no worries, neither we understood it like that.
> >>>
> >>> Of course, if one looks to the photos, the first idea,
> >>> which comes to one's
> >>> mind is: oil.
> >>> No idea, what causes this effect, maybe the composition.
> >>> Also that strange
> >>> tint the cut faces reveal.
> >>>
> >>> And especially worrying is the variety of the odd
> >>> inclusions. I mean
> >>> normally we all get already excited, whenever we find a
> >>> carbonaceous
> >>> fragment in a howardite,
> >>> but what that stone has all for strange clasts - that is
> >>> really not normal
> >>> anymore.
> >>>
> >>> Since 1999 Stefan is in Morocco and since then we certainly
> >>> had quite a
> >>> bunch of materials in our hands,
> >>> but such a weird polymict one - extremely unusual.
> >>>
> >>> And it seems that many collectors feel the same, if after
> >>> such a short time
> >>> now only three slices are left.
> >>>
> >>> Now all of the smaller ones are gone, sorry for that. But
> >>> we have still a
> >>> slice left, which we could subdivide into small partslices,
> >>> if desired - but
> >>> for that one has really to raise his finger.
> >>>
> >>> For the moment!
> >>> Martin
> >>>
> >>> -----Urspr?ngliche Nachricht-----
> >>> Von: meteorite-list-bounces at meteoritecentral.com
> >>> [mailto:meteorite-list-bounces at meteoritecentral.com]
> >>> Im Auftrag von Galactic
> >>> Stone& Ironworks
> >>> Gesendet: Donnerstag, 21. Juli 2011 00:48
> >>> An: Chladnis Heirs
> >>> Cc: meteorite-list at meteoritecentral.com
> >>> Betreff: Re: [meteorite-list] AD: Special: Truly baffling
> >>> & sensational
> >>> Howardite - NWA 6709 - absolutely stunning and very fresh.
> >>>
> >>> Hi Martin,
> >>>
> >>> I didn't mean to impeach the meteorite, I was just
> >>> curious.
> >>>
> >>> This is indeed a mystery. Have any scientists offered
> >>> or agreed to
> >>> look at it? Perhaps hit the rainbow area with the
> >>> microprobe or SEM?
> >>>
> >>> Aesthetically speaking, it's gorgeous and looks like Mother
> >>> of Pearl. :)
> >>>
> >>> Best regards,
> >>>
> >>> MikeG
> >>>
> >>> --
> >>>
> ----------------------------------------------------------------------------
> >>> -----
> >>> Galactic Stone& Ironworks - Meteorites& Amber
> >>> (Michael Gilmer)
> >>>
> >>> Website - http://www.galactic-stone.com
> >>> Facebook - http://tinyurl.com/42h79my
> >>> News Feed - http://www.galactic-stone.com/rss/126516
> >>> Twitter - http://twitter.com/galacticstone
> >>> EOM -
> http://www.encyclopedia-of-meteorites.com/collection.aspx?id=1564
> >>>
> ----------------------------------------------------------------------------
> >>> -----
> >>>
> >>> On 7/20/11, Chladnis Heirs<news at chladnis-heirs.com>
> >>> wrote:
> >>>> No, it's natural!
> >>>>
> >>>> Martin
> >>>>
> >>>>
> >>>> -----Urspr?ngliche Nachricht-----
> >>>> Von: Galactic Stone& Ironworks [mailto:meteoritemike at gmail.com]
> >>>> Gesendet: Mittwoch, 20. Juli 2011 23:24
> >>>> An: Chladnis Heirs
> >>>> Cc: meteorite-list at meteoritecentral.com
> >>>> Betreff: Re: [meteorite-list] AD: Special: Truly
> >>> baffling& sensational
> >>>> Howardite - NWA 6709 - absolutely stunning and very
> >>> fresh.
> >>>> Wow! That is one of the most beautiful
> >>> howardites I have ever seen.
> >>>> Nice find. :)
> >>>>
> >>>> The rainbox coloration is very odd. Was the
> >>> stone cleaned at any time?
> >>>> Best regards,
> >>>>
> >>>> MikeG
> >>>>
> >>>>
> >>>
> ----------------------------------------------------------------------------
> >>>> -----
> >>>> Galactic Stone& Ironworks - Meteorites&
> >>> Amber (Michael Gilmer)
> >>>> Website - http://www.galactic-stone.com
> >>>> Facebook - http://tinyurl.com/42h79my
> >>>> News Feed - http://www.galactic-stone.com/rss/126516
> >>>> Twitter - http://twitter.com/galacticstone
> >>>> EOM -
> http://www.encyclopedia-of-meteorites.com/collection.aspx?id=1564
> >>>>
> >>>
> ----------------------------------------------------------------------------
> >>>> -----
> >>>>
> >>>> On 7/20/11, Chladnis Heirs<news at chladnis-heirs.com>
> >>> wrote:
> >>>>> Dear meteorite community,
> >>>>>
> >>>>> with this Special we have to introduce to you an
> >>> enormous oddity.
> >>>>> It is about a HED-meteorite of a kind, which we
> >>> hadn't ever seen before
> >>> in
> >>>>> our careers before.
> >>>>>
> >>>>> It came in two stones, one of them was covered
> >>> with a lush fusion crust,
> >>>>> wonderfully structured by thick and oriented
> >>> flowlines.
> >>>>> And in some parts, that very crust displayed a
> >>> gloss and a shine,
> >>>> iridescent
> >>>>> in all colours of the rainbow;
> >>>>> an effect, reminding almost to bismuth!
> >>>>>
> >>>>> Please take a look to the photos, where we tried
> >>> to captured the effect:
> >>>>> http://www.chladnis-heirs.com/new-meteorites/nwa6709.html
> >>>>>
> >>>>>
> >>>>> The interior was no less a riddle for us.
> >>>>> The distribution and sizes of the various
> >>> fragments and clasts were
> >>> unlike
> >>>>> we had seen in any polymict HED before.
> >>>>> A variety of clasts is of a kind, like we never
> >>> had recovered in any
> >>> Vesta
> >>>>> meteorite. Please take a closer look to the slices
> >>> and you will share our
> >>>>> surprise.
> >>>>>
> >>>>> And a very few of these clasts develope due to
> >>> their microscopically
> >>>>> lamellae-texture a fire like an opal, if turned
> >>> around in the light.
> >>>>> The response to a magnet is very inhomogeneous
> >>> within the slices,
> >>>>> although no differences are visible to the eye
> >>>>> and all in all the interior has a somewhat dull
> >>> yellowish tint - although
> >>>>> the material is very fresh - and that tint and the
> >>> circumstances made us
> >>>>> initially think, it might be diogenitic.
> >>>>>
> >>>>> It is under classification at Dr. Anthony Irving
> >>> and the values say, that
> >>>> it
> >>>>> is a shocked howardite.
> >>>>>
> >>>>> We crafted now a set of polished sliced of all
> >>> sizes, to share this
> >>>>> exceptional material with you.
> >>>>> Please acknowledge that we have kept the price,
> >>> despite of the for us so
> >>>>> unique properties of the material, well
> >>> affordable,
> >>>>> for everybody staying able to add a specimen of
> >>> this truly exceptional
> >>>> stone
> >>>>> to his collection.
> >>>>> And an addition it is, also for the most
> >>> experienced veteran collector.
> >>>>> Earlier today we had published the Special in the
> >>> German forum, therefore
> >>>>> not so many specimens are left.
> >>>>>
> >>>>> For the largest slice we can offer a discount as
> >>> it is the only one,
> >>> which
> >>>>> isn't coplanar.
> >>>>>
> >>>>> And finally, the specimen named "piece #2", which
> >>> we chose to illustrate
> >>>>> best that rainbow-bismuth-gloss of the fusion
> >>> crust on the first linked
> >>>>> page, is available too. It weighs 119.2g and we're
> >>> accepting offers.
> >>>>> Here you are now:
> >>>>> http://www.chladnis-heirs.com/specials/special-nwa6709.html
> >>>>>
> >>>>>
> >>>>> Best Regards,
> >>>>> Stefan& Martin
> >>>>>
> >>>>> Chladni's Heirs
> >>>>> Munich - Berlin
> >>>>> Fine Meteorites for Science& Collectors
> >>>>>
> >>>>> http://www.chladnis-heirs.com
> >>>>>
> >>>>>
> >>>>>
> >>>>> ______________________________________________
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> >>>>>
> >>>>
> >>>> --
> >>>>
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Received on Thu 21 Jul 2011 03:10:56 PM PDT