[meteorite-list] the tucson show emerald/ hans koser room

[habibi abdelaziz]

hello list,

the biggest achondrite diogenite the taoudinid,
make it to tucson today after a week hold in NY customs , i think they was impressed or so? , anyway it's safely arrived at hans koser room with mohamed sbai, so hurry up to see this beauty , i was told right now by phone , the first guy that saw it, almost fall over,
i think this will be the most amazing meteorite of the show, the biggest from africa achondrite and be sur to look with binocular inside the crystalisation is wonderfull , and it's not paired to any other diogenite and 
some scientist said it's unique and other said unusual;

give me news
all the best
aziz habibi
here is the classification of this meteorite.


Proposed Name	Taoudeni NWA		Geographic Coordinates : N 22°47.5’ W3°58.0’
City, County, province/state and Country : Taoudeni, (Tombouctou),Mali.
Find : December 2007
Major classification (group)4 : Diogenite

History: A Moroccan meteorite hunter (Dhamen Ouled Ali) looking for pieces of Erg Chech fall , found by chance this 23 kg single stone, 15 km North of the Taoudeni salines. 
Physical characteristics: One single stone, with patches of fusion crust (5 to 10 % approximately). TKW 24,370 g. log = 2.8.
Petrography: A. Jambon, O. Boudouma, D. Badia ,UPVI. Study on one polished section by EMPA, SEM.
Cumulate texture of largely dominant orthopyroxene, with minor amounts of poikilitally enclosed olivine and chromite/pyrrhotite. Interstitial plagioclase and chromite. Rare silica and kamacite (mostly weathered) . A few clusters of subhedrehal olivine appear to be irregularly distributed (according to photographs of the whole stone). Millimetric crystals of gem quality. Mode from a BSE image on a polished section of about 2 cm2: Orthopyroxene = 87 %, Olivine = 7 %, Chromite = 1.6 %, Plagioclase = 3 %.

Mineral compositions and geochemistry: Abundant lo-Ca Pyroxene : En69Fs26Wo4; Cr2O3 = 0.7%; FeO/MnO = 31. Olivine Fa34; Cr2O3 = 0.03%, CaO = 0.08 %; FeO/MnO = 51. Minor hi-Ca Pyroxene: En45Fs13Wo42. Plagioclase An87Ab12Or1. Chromite : Mg# = 0.24; Cr/(Cr+Al) = 0.69. Kamacite with Ni = 12%.

Classification: Diogenite. Weathering : moderate. No shock features. 

Type specimens: A specimen of 31 g and one polished section are on deposit at UPVI. A. Habibi (Erfoud) holds the main mass. 


habibi aziz 
box 70 erfoud 52200 morroco 
phone. 21235576145 
fax.21235576170