[meteorite-list] Forwarded email from Aziz Habibi NEW LUNAR monzogabbro meteorite

2007-02-28 Thread Gi-po Meteorites

Hi List,

Aziz asked me to forward a email from him to the list,
here it is:

dear list,

here is  the first lunar monzogabbro!!, as you will read in the 
classification;  it's also the first lunar to look like a shergotite.


under microscope it's looking exactly like a shergotite from the texture..

with all modesty this is one of the most important  planetary 
meteorite.a very rare classification .


enjoy photo in this link and here is the classification done by doctor 
Albert Jambon from upvi Paris.


... yes a lunar with a Martianshergtoite texture...



go to this link and click on lunar album nwa 4683.

http://photos.yahoo.com/azizhabibi



to understand how it's classified as monzogabbro check out this link.

http://www.uwgb.edu/DutchS/PETROLGY/classification_of_igneous_rocks.htm.

enjoy photo in this link and here is the classification done by doctor 
Albert Jambon from upvi Paris.




there are other album including a new oriented Martian  and a very fresh 
lodranites.


all the best,

aziz habibi
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[meteorite-list] Forwarded email from Aziz Habibi: NEW LUNAR monzogabbro meteorite..

2007-02-28 Thread gipometeorites
Hi List,

Aziz Habibi asked me to forward a email from him to the list,
so here it is:

dear list,

here is  the first lunar monzogabbro!!, as you will read in the classification; 
 it's also the first lunar to look like a shergotite.

under microscope it's looking exactly like a shergotite from the texture..

with all modesty this is one of the most important  planetary meteorite.a very 
rare classification .

enjoy photo in this link and here is the classification done by doctor Albert 
Jambon from upvi Paris.

. yes a lunar with a Martianshergtoite texture.

 

go to this link and click on lunar album nwa 4683.

http://photos.yahoo.com/azizhabibi

 

to understand how it's classified as monzogabbro check out this link.

http://www.uwgb.edu/DutchS/PETROLGY/classification_of_igneous_rocks.htm.

enjoy photo in this link and here is the classification done by doctor Albert 
Jambon from upvi Paris.

 

there are other album including a new oriented Martian  and a very fresh 
lodranites.

all the best,

aziz habibi

 

Proposed NameNWA  4683   Geographic 
Coordinates1  undisclosed.

Erfoud Morocco

Find : october of 2006

Major classification (group) Achondrite (Lunar monzogabbro)

 

History:  two pieces bought from nomads in Erfoud (Morocco).

Physical characteristics:  One stone broken in two pieces 68 and 409g. Dull 
black fusion crust on one side, weathered on the other side. It is a gray, 
coarse grained, pristine magmatic rock consisting of millimetric phenocrysts 
mainly of pyroxene and plagioclase. 

 

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 and major element analyses 
ICP-MS, 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 (Fo 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. 

The chemistry, major and trace elements, but not the texture, is identical to 
NWA 032-479-773 and LAP 02205-02224-02226-02234-02436-03632.The absence of 
olivine and the relative abundance of silica in NWA 4683 are the main 
differences beside the grain size and the slightly different composition of the 
major phases.

 

 

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 monzogabbro.

 

 

Type specimens: A total of 20 g  of sample and one polished section  is on 
deposit at UPVI..  Aziz H. holds the main mass .

 

 

 

MR HABIBI

palm's hotel  club .

www.palmotel.com.

email.. [EMAIL PROTECTED]

phone = 21235576144/45/37

fax  = 21295576170
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