Hi,
Great series of photos of a new Lunar....well worth
a look. Would have
loved to have seen a photo of it before someone hit
it with a hammer!
Graham Ensor
Jason Utas wrote:
>Hola,
>I'm forwarding this on behalf of Mbark Ait Lkaid -
I have no part in
>this deal, though I must say that I would at least
take a look at the
>crust on some of the pieces even if not interested
in
>buying...freshest lunar material I've seen in a
good while.
>- Jason
>
>---
>
>Hello All,
>I'd like to introduce myself. My name is Mbark Ait
Lkaid, and I am a
>well-known meteorite dealer from Rissani, Morocco.
I was the source
>of many of the important meteorites that you have
come to see grace
>the meteorite market over the past several months,
namely the renowned
>NWA 4483, and today I'd like to announce that I
have another very
>special meteorite available for collectors: the
Lunar Monzogabbro NWA
>4734. I own the main mass, and, am making it
available to all of you
>on a first-come, first-serve basis.
>Here's a copy of the scientific abstract:
>
>
>Proposed Name NWA 4734
>Geographic Coordinates: Undisclosed.
>Erfoud, Morocco
>Find : October, 2006
>
>- Show quoted text -
>Major classification group) Achondrite (Lunar
monzogabbro)
>History: bought from nomads in Erfoud ( Morocco )
in October 2006 and
>February 2007.
>Physical characteristics: One complete crusted
stone freshly broken
>into several pieces for a TKW of 1439 g . Dull
black/brown fusion
>crust. It is a light gray, coarse grained, pristine
magmatic rock
>consisting of millimetric phenocrysts mainly of
pyroxene and
>plagioclase. The few patches where crust is missing
are light tanned.
>
>Petrography: A. Jambon, O. Boudouma and D. Badia.
UPVI .
>The texture is best described as shergottitic like.
Pyroxene are
>highly fractured while plagioclase laths, partly
transformed to
>maskelynite, are only affected by a small number of
fractures. Silica
>and silica-feldspar glass are minor components. A
few impact melt
>patches underline the similarity with shergottites
further. Ilmenite,
>baddeleyite, zirconolite, tranquilityite,
pyrrhotite and metal.
>Fayalite associated with silica probably results
from the dissociation
>of iron rich pyroxene. Minor terrestrial
alteration.
>Mode (vol %): Cpx 50, Plagioclase + Kspar 32,
silica + glass 7.5,
>opaques (ilmenite, Ti-magnetite, pyrrhotite) +
fayalite 7, voids +
>fractures 3.
>Geochemistry: Mineralogy by EMP and SEM.(Trace
-ICP-MS- and major
>-ICP-AES- element analyses, J-A Barrat UBO).
>Pyroxene exhibit a complex zoning from En65Fs21Wo13
to En2Fs83Wo15
>with a FeO/MnO of 78 on the average. A few
compositions correspond to
>pyroxferroite. Plagioclase is normally zoned from
An 91 to An 75 with
>a sharp rim. Average composition An 89. Fayalite
(Fa 80 to 95).
>Chondrite normalized REE pattern with an enrichment
of 53 (La) to 40
>(Yb). Trace element pattern with negative anomalies
of Sr and Eu.
>Interstitial glass high in silica (75%) containing
microcrysts of K
>feldspar with a significant celsian component.
>
>
>Classification: According to the grain size, the
texture, the
>plagioclase composition, the core composition of
pyroxenes, the
>FeO/MnO ratio in pyroxene and the chemical identity
with lunar
>basalts, it is classified as a highly shocked lunar
gabbro (Mare
>basalt).
>
>
>Type specimens: A total of 20 g of sample and one
polished section is
>on deposit at UPVI.
>
>Stefan Ralew, Siriusstrasse 19, 12524 Berlin,
Germany : 19.6g, 14.1g,10.8g
>Aziz Habibi, Palm's hotel, Erfoud, Morocco : 409g,
68 g .
>Mbarek Ait Elkaid, Rissani , Morocco 895g (one
large piece and about
>ten subsidiary pieces and a few smaller fragments).
>
>-----
>
>Here is a list of available specimens:
>
>1_____443.2gr
>2_____202 gr
>3_____49.1gr
>4_____46.1gr
>5_____32.7gr
>6_____24.8gr
>7_____22.9gr
>8_____12.6gr
>9_____11gr
>10____8.3gr
>11____12.6gr (small fragments)
>
>
>
>Here are pictures of all of the specimens:
>
>
>http://www.flickr.com/photos/[EMAIL PROTECTED]/
>
>
>
>For prices, email:
>
>[EMAIL PROTECTED]
>
>
>Kind Regards.
>______________________________________________
>Meteorite-list mailing list
>[email protected]
http://six.pairlist.net/mailman/listinfo/meteorite-list
>
>
>
>
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