[meteorite-list] AD- .99 Auctions ending this week Don't miss it!

From: John higgins <geohiggins_at_meteoritecentral.com>
Date: Tue, 9 Apr 2013 12:39:03 -0700 (PDT)
Message-ID: <1365536343.67272.YahooMailNeo_at_web120001.mail.ne1.yahoo.com>

 
Dear fellow meteorite enthusiasts and list members,

I would like to
take this opportunity to announce there are some incredible
meteorites auctions ending this week. Please hurry over to my e-Bay
store www.outerspacerocks.com and place your bids on these quality
meteorites!

Click
this link: ??? ?? http://tinyurl.com/3fokpoe


Highlights Include,



NWA
6286 super LL6 Meteorite, 7.7g thin part slice? ALMOST SOLD
OUT!?
 A gorgeous
and?fresh weathering level 0, LL6?Breccia?meteorite. A
very exciting find, the appearance of?NWA 6286 is similar to
what you would expect to see from?an Achondrite or?Lunar
Breccia meteorite. Yet classification results?have yielded an
exciting new LL6 Brecciated Chondrite meteorite.?This
is?a?beautiful, polished on one side,??thin part
slice with a wide surface area and a nice rim of fusion crust.



NWA
6953 Mesosiderite Meteorite 8.4g windowed fragment
 Northwest Africa 6953 is an
interesting new mesosiderite whose unique nature is a result of its
composition and the collective effects of long-term terrestrial
weathering. The metal content in NWA 6953 has experienced dramatic
alteration and has almost entirely been replaced with the iron
oxyhydroxide goethite. But it?s not the oxidation or alteration
alone that makes this meteorite fascinating. Studying how the iron
oxidation process takes place on Earth in NWA 6953, a predominantly
orthopyroxene-rich meteorite, may have huge implications for
comparing how iron oxidation may take place in aqueous environments
on other alien worlds. More importantly, studying this meteorite can
potentially reveal clues as what to look for in discovering other
highly terrestrialized meteorites that until now have mostly gone
unnoticed.
This meteorite probably fell 40-50 thousand years ago
when the Saharan desert was sub-tropical. It was not a desert then,
and the area experienced rainfall much like any other place on Earth.
NWA 6953 was exposed to a much wetter environment, and after many
millennia of weathering (at the surface and even during burial and
exhumation) nearly all the metal has been replaced with terrestrial
minerals. In fact, the visual appearance of the meteorite has been
radically changed into a strange and beautiful form that is unlike
any other in terms of aesthetics and chemistry. Voids in the
meteorite matrix have been filled with terrestrial minerals in
crystal form, producing a prismatic effect with internal reflections.
The visual similarities of this meteorite to a weathered
orthopyroxenitic diogenite gives some casual credence to the theory
that asteroid 4 Vesta may be the parent body of mesosiderites, and
when the classification results came back as a mesosiderite, everyone
involved was quite surprised. The original metal content (estimated
to be about 30-40% by volume) has been replaced by carbonates and
goethite. However, the original orthopyroxene, calcic plagioclase,
minor olivine and some troilite remain, and even a few rare grains of
the original taenite and kamacite have survived. The refractive
quality of the crystal mixture is amazing, and another quality of
this meteorite is the presence of water trapped within the matrix
during the terrestrialization of iron hydroxides. (See the
thin-section photos provided courtesy Mirko Graul Meteorites)



NWA
7122 L4 Meteorite 8.9g part slice with many nice chondrules to
appreciate and study.
 Well-developed, medium-sized
chondrules. The constituent minerals are mostly equilibrated, but
orthopyroxene grains contain remnant, more magnesian cores. Minerals
are olivine, orthopyroxene, pigeonite, subcalcic augite, sodic
plagioclase, chromite, troilite and altered kamacite.



 NWA 7192 The goregous? LL4
meteorite Breccia? 7.1g part slice
 Description: Nice Part
slice?polished on?two sides. This is?a beautiful?LL
type meteorite littered with breccia?and dense in colorful
chondrules. What makes?NWA 7192?so interesting is the
combination of having an LL type?meteorite?displaying
sections?of moderate?metal.This was highly debated and
considered an anomaly upon it's discovery because of it's
classification as LL4 yet having breccia that contains visible
metals.Petrography: Breccia with clasts
consisting of fairly large, relatively closely-packed, well-formed
chondrules in a matrix containing a moderate amount of metal.
Geochemistry? Olivine (Fa26.9-27.2), orthopyroxene (Fs21.3Wo0.2;
remnant cores Fs12.2Wo2.0), pigeonite (Fs19.6-21.0Wo12.0-13.3), sodic
plagioclase, chromite, troilite and altered kamacite.??



NWA
6868 LL6 Meteorite 7.3g part slice looks like a metachondrite with a
similar composition
 Breccia composed
of recrystallized, mostly poikiloblastic clasts containing rare
relict chondrule fragments in a matrix of related debris. Constituent
minerals are olivine, orthopyroxene, clinopyroxene, sodic
plagioclase, chromite, troilite and altered kamacite.Olivine
Fa30.4-30.5, orthopyroxene Fs25.3-25.6Wo2.7-3.1, clinopyroxene
Fs12.5-13.2Wo40.5-39.8.Description
Upon?discovery this meteorite was treated extra special because
it has?no attraction to a magnet and no visible chondrules.?My
loss is your gain, full metachondrite price was paid to acquire this
one. The discovery of what appears to be sparse relict chondrules
fragments at the microscopic level give us the LL6 classification.



NWA
6951 The shocked L5 chondrite Meteorite 7.8g part slice
 Composition: Sparse chondrules and chondrule remnants.Some metal
is ragged in shape.Olivine (Fa24.5 ? 0.0), orthopyroxene
(Fs20.0-20.2Wo1.8-1.5), clinopyroxene (Fs7.1-8.5Wo45.5-43.9), sodic
plagioclase, chromite, troilite and altered kamacite.Secondary iron
hydroxide veinlets crosscut the specimen. Description: Beautiful part slice polished on both sides
displaying awesome shocked areas!



NWA
7191 L-MELT ROCK beautiful and thin 5.97g slice
Nicest thinnest
slice available polished on one side with?three?edges
of?fusion crust. The designation L-melt rock is incredibly rare
and shares the classification with only 14 other officially
classified non-Antarctic meteorites. This meteorite is nicer than
most melts, even Cat Mountain. What makes NWA 7191 so incredible is a
bow-shock wave that gives the metal and flow material an orientation
in the matrix. This fresh meteorite has a low total known weight, its
super rare and?unfortunately there wont be much to go around.
There is a reserve on this one, it's too nice!



NWA
6284 L5 Meteorite 9.7g part slice
 Composition: Some distinct chondrules. Olivine (Fa24.7-25.1),
orthopyroxene (Fs20.4-21.2Wo4.2-1.9). clinopyroxene
(Fs7.5-7.8Wo46.6-43.8), sodic plagioclase, chromite, altered kamacite
and troilite. Description: Nice
part?slice?with?fusion crust.?NWA 6284 has a very
interesting fusion crust because most of it did not survive the
ablative process or terrestrial weathering leaving
a?heavily?pitted?fusion crust where only?the
sections?containing metal remain prominent. This part slice
shows both the primary fusion crust and the pitted crust sections and
it's polished on one side.



NWA
6289 Colorful LL4 Brecciated Meteorite 10.3g part slice with fusion
crust and loaded with chondrules
 Composition: Well-formed, relatively large chondrules. Olivine
(Fa28.6-30.3), orthopyroxene (Fs22.5-23.3Wo 0.26),
clinopyroxene (Fs 9.5Wo43.9; Fs 15.2Wo
32.6), sodic plagioclase, chromite, kamacite and troilite . Description: Part Slice with?nice?fusion crust.
Introducing a gorgeous and interesting fresh LL4 meteorite that has
so many colorful chondrules that it?looks a lot?like a type
3 or Rumuruti. LL4 meteorites are rare and this one?has what it
takes to give you the?enjoyment you expect to get?under the
loupe. This is a very nice specimen of both meteorite and type.



NWA
7716 Pallasite Meteorite 22.8g lot
 Here is an
exciting new Pallasite I bought back from my recent expedition to
Morocco. It's status is currently provisional and the internal
composition closely resembles that of some mesosiderites yet you
still have plenty of olivine. Petrography:
This extensively weathered specimen now consists of fragments of
fresh olivine (Fa13.7?0.1, N = 3; FeO/MnO = 39-42; with rare
troilite inclusions) cross-cut by veinlets of iron hydroxides
containing some remnant kamacite and taenite. Description: lot
of 3
?


NWA 6288? the
"Green"??Eucrite Breccia 2.6g thin complete
slice
Introducing a gorgeous and incredibly rare Eucrite Breccia
meteorite. NWA 6288 is a new find from the deserts of North West
Africa. On the outside, this meteorite has that faded looking yellow
crust that is signature of eucrites. However interestingly enough
cutting revealed that it looked more like a diogenite, a macroscopic
inspection of appearances would lead you to believe it's paired it to
NWA 4473, NWA 4965, or NWA 6293 which are diogenites. However the
scientific analysis has revealed that this rare meteorite is in fact
a unique and interesting eucrite breccia with diogenitic clasts. You
can never put enough emphasis on the importance of scientific
analysis, and you can never be certain about pairings from visual
observations alone. This?part slice is polished on one side with
a?rim of fusion crust wrapping?around the entire edge. With
all the talk of GREEN meteorites, don't pass up the chance to get
this beauty!




TISSINT
Shergottite Martian Meteorite 67mg fragment
 Meteorite fragment
with?provenance.?Recovered?on a?hunting
expedition to?the Tissint Strewnfield in Morocco January 2012. I
had the pleasure of writing a article for meteorite.com's new
meteorite hunting page to share my experience hunting for this
historic fall.
Please read about my exciting
adventure at
http://www.meteorite.com/tissint-meteorite-hunting-expedition/
Or click here:? http://tinyurl.com/bomqmxe



METEORITE
STICK
Are You ready to become a Meteorite Hunter? Your Thrilling
Outer Space adventure starts here and now! Order tonight and get
ready to go hunting for a new meteorite discovery! Includes 20g of
beautiful NWA 869 meteorites so you can practice at home or in the
back yard. Be sure to watch the Outer space Rocks video "How to
find a Meteorite"?http://tinyurl.com/cgw8uvm it's on my You-tube channel under my name
meteoritehunting and please subscribe to my channel for new and
exciting Meteorite videos to be released!
You can also watch these
videos, inspect and purchase from the website
www.MeteoriteStick.CO
also it's available through? E-Bay &? Amazon



NWA 6077 Ungrouped Achondrite
Brachinite Like Meteorite 2.44g end cut
 Petrography: (A. Irving and S. Kuehner,UWS) An olivine-rich
assemblage with protogranular (possibly cumulate) texture exhibiting
triple junction grain boundaries. Additional minerals include
orthopyroxene, clinopyroxene, altered kamacite, chromite,
chlorapatite, Ni-bearing troilite and/or pyrrhotite. No plagioclase
was found. Geochemistry: Olivine (Fa 30.2-30.7), orthopyroxene (Fs24.1-24.5Wo2.1-2.0),
clinopyroxene (Fs 9.4-10.0Wo 44.0-43.5). Oxygen isotopes (D. Rumble, CIW): ?17O
2.667, 2.932; ?18O 5.180, 5.536; ? 17O
-0.057, +0.020 per mil. Analysis conducted at the Carnegie
Institution of Washington shows that the oxygen isotopic composition
of this specimen plots on the Terrestrial Fractionation Line. In
conjunction with the mineral compositions and texture, this
establishes that NWA 6077 is most likely paired with NWA 5400.
Description: Maybe a snapshot in time of
primitive Earth! NWA 6077 is a unique and fascinating ungrouped
meteorite similar to the brachinite group of achondrites. Brachinites
are very rare and possess some unusual characteristics that set them
apart from ordinary meteorites. Brachinites originate from a
primitive, unknown parent body that may no longer exist. Since there
has never been a witnessed fall of a brachinite meteorite, it has
been impossible to calculate the meteorite's trajectory and exact
origin. Scientists theorize that brachinites come from a large
asteroid that had a heterogeneous composition. This explains why
samples of brachinite can vary in chemistry and appearance. This
brachinite is a cumulate type material, which means that it likely
originated from a magma chamber deep inside its parent asteroid.
Early in the history of the solar system, large asteroid bodies
generated their own internal heat through a combination of
radioactive decay and energy released from collisions. This heating
melted materials near the core of the body, which resulted in the
formation of brachinite materials. Since the cumulates could form in
various places inside the magma chamber (including the cooler outer
core boundary), there is some variation in the elemental compositions
of brachinites. Because their history has some similarities to our
own magmatic rocks, it is not surprising that brachinites plot very
closely to the terrestrial fractionation line. Brachinites are named
after the first known meteorite of their type, Brachina. At the time,
some experts theorized that Brachina (and it's cousin Eagle's Nest)
may have originated from Mars and bore some affinity to Chassignites,
but later study proved that theory wrong. There are only 18 known
brachinites out of 30,000 classified meteorites, which makes them
several times rarer than Lunar or Martian meteorites. By weight,
there very little of brachinite material on Earth - making it one of
the more difficult (and expensive) types to acquire. Many scientist
have considered NWA 6077 to be one of the most significant finds in
history. To put in perspective how important, this meteorite comes
from a time when Earth was a primordial ball of molten rock. It may
be the only surviving ancestor of Earth itself. The last time such a
important discovery was made is when anthropologist found Lucy the
missing link between Ape and Man.



Thank YOU for stopping by!
www.OuterSpaceRocks.com
http://tinyurl.com/3fokpoe


Sincerely
kindest regards,
John Higgins
IMCA #9822
ebay
ID meteoritehunting


Small
note regarding shipping combined multiple items internationally
(Whatever the extra price over the regular shipping expense, if any,
I only charge actual shipping cost when combining items, It depends
upon the weight and destination. So please keep in mind the heavier meteorites will cost more to ship. Please when you win the bids, and
you are finished, request a total for all items, I will package them
up as light as possible, and weigh the package to find the quoted
price, you will have no extra charges, not even for the cost of the
packaging. My goal is to provide you the best service and the highest
savings possible.

" When we help one
another, there is no limit to what we can accomplish"


PS. Keep an eye out for more
meteorites to be listed!


Have a Great Day!
Received on Tue 09 Apr 2013 03:39:03 PM PDT